Not to be confused with googolpentaplex.

Googolpetaplex in zeroes

A googolpetaplex is equal to a googol followed by a quadrillion plexes.[1][2] In Hyper-E notation it can be written E100#(quadrillion+1) and as power tower, 1010...10100 (with quadrillion+1 10's).


The name of this number is based on SI prefix "peta-" and the number "googolplex".


  1. Plexing & The Googol Series - Large Numbers by Sbiis Saibian
  2. Very big numbers - Math Recreational - JLR

See also

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