(n) :
(US; modern British & Australian, short scale) A thousandtrillion: 1 followed by fifteen zeros, 1015; (dated British & Australian, long scale) A milliontrillion: 1 followed by twenty-four zeros, 1024
(n) :
(US; modern British & Australian, short scale) A thousandtrillion: 1 followed by fifteen zeros, 1015; (dated British & Australian, long scale) A milliontrillion: 1 followed by twenty-four zeros, 1024