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## Tongue twister: The number of possible IPv6 addresses read out loud

IPv6 can theoretically hold 2^128 IP addresses. As you’re probably aware of, that’s a huge number:

2^128 = 340,282,366,920,938,463,463,374,607,431,768,211,456

Have you ever wondered how you would actually SAY that number if you had to read it out loud? A cool thing with Wolfram Alpha is that it will spell out numbers for you, making it possible for us to find this out without too much of a headache. Here’s the text version of the number:

340 undecillion, 282 decillion, 366 nonillion, 920 octillion, 938 septillion, 463 sextillion, 463 quintillion, 374 quadrillion, 607 trillion, 431 billion, 768 million, 211 thousand and 456

Read it out loud really fast. A bit of a mouthful…

We write about IPv6 from time to time in this blog. You might want to check out a couple of our previous articles:

buddastic

cool, each cell of my body can have its own ip address

Web User

That's a lot of websites for us to write about. Gulp.

Web User

That's a lot of websites for us to write about. Gulp.

David Riesenberg

According to Wikipedia, the estimated numbers of atoms in the universe is ~10^80, or 100 quinvigintillion

David Riesenberg

According to Wikipedia, the estimated numbers of atoms in the universe is ~10^80, or 100 quinvigintillion

Mike Simon

If only our cable providers would allocate some to us :)

Mike Simon

If only our cable providers would allocate some to us :)

Gabriel Olson

How does this number compare to the number of stars in the universe, or even better, the number of atoms in the universe (estimated, of course)?

Gabriel Olson

How does this number compare to the number of stars in the universe, or even better, the number of atoms in the universe (estimated, of course)?

project5k

For correct verbalization, the word "AND" should be used only to denote the location of the decimal, as in 100.21 would be one-hundred and 21 cents, (or hundredths), etc.

.

42?

will

crap! we ran out of ip addresses!

CaptainZM

If we ever have to switch to IPv8, we'll know for sure there are too many computers in the world.

deafwing

@Gabriel Olson - the observable universe has 1 septillion stars give or take ... (maybe more on the take side :p ) ...  observable because how far we can see or how fast/far light travels and we can observe ... then there is the part of existence that we never know and probably never will .... so ... would be safe to increase to few more ^powers .. it's huge

so for the time being ... or until we develop extra-superhuman sight, there seems to be more ipv6 addresses than the observable universes star count ...