156631560156 has 72 divisors (see below), whose sum is σ = 418083491280. Its totient is φ = 49306496256.

The previous prime is 156631560131. The next prime is 156631560167. The reversal of 156631560156 is 651065136651.

156631560156 is a `hidden beast` number, since 1 + 5 + 6 + 6 + 31 + 5 + 601 + 5 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144361 + ... + 578016.

Almost surely, 2^156631560156 is an apocalyptic number.

It is an amenable number.

156631560156 is an abundant number, since it is smaller than the sum of its proper divisors (261451931124).

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

156631560156 is a wasteful number, since it uses less digits than its factorization.

156631560156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722723 (or 722718 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

The spelling of 156631560156 in words is "one hundred fifty-six billion, six hundred thirty-one million, five hundred sixty thousand, one hundred fifty-six".