156922145956 has 81 divisors (see below), whose sum is σ = 298139277891. Its totient is φ = 72254841600.

The previous prime is 156922145929. The next prime is 156922145957. The reversal of 156922145956 is 659541229651.

The square root of 156922145956 is 396134.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 14479308900 + 142442837056 = 120330^2 + 377416^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156922145897 and 156922145906.

It is not an unprimeable number, because it can be changed into a prime (156922145957) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 821581821 + ... + 821582011.

Almost surely, 2^156922145956 is an apocalyptic number.

156922145956 is the 396134-th square number.

It is an amenable number.

156922145956 is a deficient number, since it is larger than the sum of its proper divisors (141217131935).

156922145956 is an equidigital number, since it uses as much as digits as its factorization.

156922145956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 271 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 55.

The spelling of 156922145956 in words is "one hundred fifty-six billion, nine hundred twenty-two million, one hundred forty-five thousand, nine hundred fifty-six".