156331071122 has 18 divisors (see below), whose sum is σ = 237569620743. Its totient is φ = 77154291084.

The previous prime is 156331071059. The next prime is 156331071163. The reversal of 156331071122 is 221170133651.

It can be written as a sum of positive squares in only one way, i.e., 78165535561 + 78165535561 = 279581^2 + 279581^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=279581.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44172029 + ... + 44175567.

Almost surely, 2^156331071122 is an apocalyptic number.

156331071122 is a deficient number, since it is larger than the sum of its proper divisors (81238549621).

156331071122 is an frugal number, since it uses more digits than its factorization.

156331071122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238 (or 3620 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

Multiplying 156331071122 by its sum of digits (32), we get a square (5002594275904 = 2236648²).

The spelling of 156331071122 in words is "one hundred fifty-six billion, three hundred thirty-one million, seventy-one thousand, one hundred twenty-two".