151512921680 has 20 divisors (see below), whose sum is σ = 352267543092. Its totient is φ = 60605168640.

The previous prime is 151512921667. The next prime is 151512921739. The reversal of 151512921680 is 86129215151.

It can be written as a sum of positive squares in 2 ways, for example, as 117542008336 + 33970913344 = 342844^2 + 184312^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946955681 + ... + 946955840.

Almost surely, 2^151512921680 is an apocalyptic number.

151512921680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151512921680 is an abundant number, since it is smaller than the sum of its proper divisors (200754621412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151512921680 is a wasteful number, since it uses less digits than its factorization.

151512921680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893911534 (or 1893911528 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 41.

The spelling of 151512921680 in words is "one hundred fifty-one billion, five hundred twelve million, nine hundred twenty-one thousand, six hundred eighty".