Decillion vs. Nonillion — What's the Difference?

The cardinal number equal to 1033.

The cardinal number equal to 1030.

Chiefly British The cardinal number equal to 1060.

Chiefly British The cardinal number equal to 1054.

(US; modern British & Australian, short scale) 10³³.

10³⁰.

(dated British & Australian, long scale) 10⁶⁰.

(dated British & Australian, long scale) 10⁵⁴.

According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and American notation, a thousand involved to the eleventh power, or a unit with thirty-three ciphers annexed. [See the Note under Numeration.]

(hyperbole) An unspecified very large number.

According to the French and American notation, a thousand octillions, or a unit with thirty ciphers annexed; according to the English notation, a million octillions, or a unit with fifty-four ciphers annexed. See the Note under Numeration.