256502031606 has 12 divisors (see below), whose sum is σ = 555754401852. Its totient is φ = 85500677196.

The previous prime is 256502031593. The next prime is 256502031659. The reversal of 256502031606 is 606130205652.

It is a happy number.

256502031606 is a `hidden beast` number, since 2 + 565 + 0 + 2 + 0 + 31 + 60 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7125056416 + ... + 7125056451.

It is an arithmetic number, because the mean of its divisors is an integer number (46312866821).

Almost surely, 2^256502031606 is an apocalyptic number.

256502031606 is an abundant number, since it is smaller than the sum of its proper divisors (299252370246).

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

256502031606 is a wasteful number, since it uses less digits than its factorization.

256502031606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14250112875 (or 14250112872 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 256502031606 in words is "two hundred fifty-six billion, five hundred two million, thirty-one thousand, six hundred six".