156386560 has 144 divisors (see below), whose sum is σ = 423843840. Its totient is φ = 54763520.

The previous prime is 156386557. The next prime is 156386567. The reversal of 156386560 is 65683651.

It is a super-2 number, since 2×156386560² = 48913512297267200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156386567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408129 + ... + 408511.

It is an arithmetic number, because the mean of its divisors is an integer number (2943360).

Almost surely, 2^156386560 is an apocalyptic number.

156386560 is a gapful number since it is divisible by the number (10) 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 156386560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211921920).

156386560 is an abundant number, since it is smaller than the sum of its proper divisors (267457280).

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

156386560 is a wasteful number, since it uses less digits than its factorization.

156386560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 156386560 is about 12505.4612070087. The cubic root of 156386560 is about 538.7655386047.

The spelling of 156386560 in words is "one hundred fifty-six million, three hundred eighty-six thousand, five hundred sixty".