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A Octoquinquagintillion (1 Octoquinquagintillion) is 10 to the power of 177 (10^177). This is an immensely enormous number!

How many zeros in a Octoquinquagintillion?

There are 177 zeros in a Octoquinquagintillion.

What's before Octoquinquagintillion?

A Septenquinquagintillion is smaller than a Octoquinquagintillion.

What's after Octoquinquagintillion?

A Novenquinquagintillion is larger than a Octoquinquagintillion.


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

Is Octoquinquagintillion the largest number?

Octoquinquagintillion 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.

Octoquinquagintillion written out

Octoquinquagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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