156864320 has 28 divisors (see below), whose sum is σ = 373533924. Its totient is φ = 62745600.

The previous prime is 156864317. The next prime is 156864329. The reversal of 156864320 is 23468651.

It can be written as a sum of positive squares in 2 ways, for example, as 118026496 + 38837824 = 10864^2 + 6232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156864329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244781 + ... + 245420.

Almost surely, 2^156864320 is an apocalyptic number.

156864320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156864320 is an abundant number, since it is smaller than the sum of its proper divisors (216669604).

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

156864320 is an equidigital number, since it uses as much as digits as its factorization.

156864320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490218 (or 490208 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 156864320 is about 12524.5486944640. The cubic root of 156864320 is about 539.3136226783.

The spelling of 156864320 in words is "one hundred fifty-six million, eight hundred sixty-four thousand, three hundred twenty".