156918771933 has 32 divisors (see below), whose sum is σ = 266175513600. Its totient is φ = 81516239280.

The previous prime is 156918771917. The next prime is 156918771937. The reversal of 156918771933 is 339177819651.

It is not a de Polignac number, because 156918771933 - 2⁴ = 156918771917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156918771937) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6920335 + ... + 6942972.

It is an arithmetic number, because the mean of its divisors is an integer number (8317984800).

Almost surely, 2^156918771933 is an apocalyptic number.

It is an amenable number.

156918771933 is a deficient number, since it is larger than the sum of its proper divisors (109256741667).

156918771933 is a wasteful number, since it uses less digits than its factorization.

156918771933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13863342 (or 13863328 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 60.

The spelling of 156918771933 in words is "one hundred fifty-six billion, nine hundred eighteen million, seven hundred seventy-one thousand, nine hundred thirty-three".