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A Octooctogintillion (1 Octooctogintillion) is 10 to the power of 267 (10^267). This is a tremendously astronomical number!

How many zeros in a Octooctogintillion?

There are 267 zeros in a Octooctogintillion.

What's before Octooctogintillion?

A Septemoctogintillion is smaller than a Octooctogintillion.

What's after Octooctogintillion?

A Novemoctogintillion is larger than a Octooctogintillion.


A Octooctogintillionaire is someone whos assets, net worth or wealth is 1 or more Octooctogintillion. It is unlikely anyone will ever be a true Octooctogintillionaire. If you want to be a Octooctogintillionaire, play Tap Tales!

Is Octooctogintillion the largest number?

Octooctogintillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Octooctogintillion written out

Octooctogintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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