256120232902 has 32 divisors (see below), whose sum is σ = 406990746720. Its totient is φ = 120543874560.

The previous prime is 256120232897. The next prime is 256120232911. The reversal of 256120232902 is 209232021652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11381502 + ... + 11403982.

It is an arithmetic number, because the mean of its divisors is an integer number (12718460835).

Almost surely, 2^256120232902 is an apocalyptic number.

256120232902 is a deficient number, since it is larger than the sum of its proper divisors (150870513818).

256120232902 is a wasteful number, since it uses less digits than its factorization.

256120232902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24408.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 256120232902 in words is "two hundred fifty-six billion, one hundred twenty million, two hundred thirty-two thousand, nine hundred two".