156390656 has 36 divisors (see below), whose sum is σ = 319452672. Its totient is φ = 76371456.

The previous prime is 156390643. The next prime is 156390671. The reversal of 156390656 is 656093651.

It is a super-2 number, since 2×156390656² = 48916074568220672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3905 + ... + 18111.

Almost surely, 2^156390656 is an apocalyptic number.

156390656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156390656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159726336).

156390656 is an abundant number, since it is smaller than the sum of its proper divisors (163062016).

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

156390656 is an equidigital number, since it uses as much as digits as its factorization.

156390656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14266 (or 14252 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 156390656 is about 12505.6249743865. The cubic root of 156390656 is about 538.7702422578.

The spelling of 156390656 in words is "one hundred fifty-six million, three hundred ninety thousand, six hundred fifty-six".