Answer: googol

AnswerCrossword Clue
GOOGOL1 followed by 100 zeros
googolthe figure 1 followed by 100 zeros equal to 10100
googolnumber that is equal to 1 followed by 100 zeros and expressed as 10100
googolone followed by a hundred zeros
GOOGOLAlmost unfathomably large number
GOOGOLNumber with 101 digits
GOOGOLMath factor
GOOGOL10 to the hundredth power
GOOGOLGiant number
GOOGOLVery large number
GOOGOLNumber having 100 zeros
GOOGOLA 1 followed by 100 zeros
GOOGOLHuge number
GOOGOLThe No. 1 followed by 100 zeros.
GOOGOLNumber with 100 zeros
GOOGOLReally big number
GOOGOLNumber with 100 zeroes
GOOGOLLarge power of ten
GOOGOL10 to the 100th power
GOOGOLRidiculously large number
GOOGOLA very large number
GOOGOLExtremely large number
GOOGOLNumber of 101 digits
GOOGOLNumber beyond comprehension
GOOGOLBig number
GOOGOLHumongous number
GOOGOL101-digit number
GOOGOLHuge power of 10