256510107707116 has 6 divisors (see below), whose sum is σ = 448892688487460. Its totient is φ = 128255053853556.

The previous prime is 256510107707107. The next prime is 256510107707137. The reversal of 256510107707116 is 611707701015652.

It is a super-2 number, since 2×256510107707116² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256510107707116.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32063763463386 + ... + 32063763463393.

Almost surely, 2^{256510107707116} is an apocalyptic number.

It is an amenable number.

256510107707116 is a deficient number, since it is larger than the sum of its proper divisors (192382580780344).

256510107707116 is a wasteful number, since it uses less digits than its factorization.

256510107707116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64127526926783 (or 64127526926781 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 49.

The spelling of 256510107707116 in words is "two hundred fifty-six trillion, five hundred ten billion, one hundred seven million, seven hundred seven thousand, one hundred sixteen".