256160160 has 72 divisors (see below), whose sum is σ = 874151460. Its totient is φ = 68308992.

The previous prime is 256160141. The next prime is 256160173. The reversal of 256160160 is 61061652.

It is a happy number.

256160160 is a `hidden beast` number, since 2 + 56 + 1 + 601 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 252047376 + 4112784 = 15876^2 + 2028^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87505 + ... + 90384.

Almost surely, 2^256160160 is an apocalyptic number.

256160160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256160160 is an abundant number, since it is smaller than the sum of its proper divisors (617991300).

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

256160160 is a wasteful number, since it uses less digits than its factorization.

256160160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177910 (or 177899 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 256160160 is about 16005.0042174315. The cubic root of 256160160 is about 635.0928088871.

The spelling of 256160160 in words is "two hundred fifty-six million, one hundred sixty thousand, one hundred sixty".