256536424635652 has 12 divisors (see below), whose sum is σ = 513072849271360. Its totient is φ = 109944181986696.

The previous prime is 256536424635649. The next prime is 256536424635661.

256536424635652 is nontrivially palindromic in base 10.

256536424635652 is an admirable number.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

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, 4581007582752 + ... + 4581007582807.

Almost surely, 2^{256536424635652} is an apocalyptic number.

It is an amenable number.

256536424635652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256536424635652 is a wasteful number, since it uses less digits than its factorization.

256536424635652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9162015165570 (or 9162015165568 counting only the distinct ones).

The product of its digits is 933120000, while the sum is 64.

The spelling of 256536424635652 in words is "two hundred fifty-six trillion, five hundred thirty-six billion, four hundred twenty-four million, six hundred thirty-five thousand, six hundred fifty-two".