157559997880 has 32 divisors (see below), whose sum is σ = 354891682800. Its totient is φ = 62956143616.

The previous prime is 157559997821. The next prime is 157559997923. The reversal of 157559997880 is 88799955751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082862 + ... + 2157181.

Almost surely, 2^157559997880 is an apocalyptic number.

157559997880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157559997880 is an abundant number, since it is smaller than the sum of its proper divisors (197331684920).

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

157559997880 is a wasteful number, since it uses less digits than its factorization.

157559997880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4240983 (or 4240979 counting only the distinct ones).

The product of its (nonzero) digits is 285768000, while the sum is 73.

The spelling of 157559997880 in words is "one hundred fifty-seven billion, five hundred fifty-nine million, nine hundred ninety-seven thousand, eight hundred eighty".