- the number represented by 1 followed by 27 zeros
- Brit. the number represented by 1 followed by 48 zeros
Origin of octillionFrench from Classical Latin octo, eight + French (m)illion
amounting to one octillion in number
- The cardinal number that is equal to 1027.
- Chiefly British The cardinal number that is equal to 1048.
Origin of octillionoct(o)- (m)illion
oct- (“eight") +"Ž -illion