157656500660 has 12 divisors (see below), whose sum is σ = 331078651428. Its totient is φ = 63062600256.

The previous prime is 157656500629. The next prime is 157656500689. The reversal of 157656500660 is 66005656751.

It can be written as a sum of positive squares in 2 ways, for example, as 114107488804 + 43549011856 = 337798^2 + 208684^2 .

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, 3941412497 + ... + 3941412536.

It is an arithmetic number, because the mean of its divisors is an integer number (27589887619).

Almost surely, 2^157656500660 is an apocalyptic number.

157656500660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157656500660 is an abundant number, since it is smaller than the sum of its proper divisors (173422150768).

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

157656500660 is a wasteful number, since it uses less digits than its factorization.

157656500660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7882825042 (or 7882825040 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 157656500660 in words is "one hundred fifty-seven billion, six hundred fifty-six million, five hundred thousand, six hundred sixty".