256270011705 has 40 divisors (see below), whose sum is σ = 459425005512. Its totient is φ = 136666248192.

The previous prime is 256270011691. The next prime is 256270011719. The reversal of 256270011705 is 507110072652.

256270011705 is a `hidden beast` number, since 25 + 627 + 0 + 0 + 1 + 1 + 7 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (256270011691) and next prime (256270011719).

It can be written as a sum of positive squares in 4 ways, for example, as 3992849721 + 252277161984 = 63189^2 + 502272^2 .

It is not a de Polignac number, because 256270011705 - 2⁸ = 256270011449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256270011705.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8300457 + ... + 8331273.

Almost surely, 2^256270011705 is an apocalyptic number.

It is an amenable number.

256270011705 is a deficient number, since it is larger than the sum of its proper divisors (203154993807).

256270011705 is a wasteful number, since it uses less digits than its factorization.

256270011705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51367 (or 51358 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The spelling of 256270011705 in words is "two hundred fifty-six billion, two hundred seventy million, eleven thousand, seven hundred five".