255019408960856 has 16 divisors (see below), whose sum is σ = 478534081915800. Its totient is φ = 127410320449984.

The previous prime is 255019408960819. The next prime is 255019408960867. The reversal of 255019408960856 is 658069804910552.

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 3 ways as a sum of consecutive naturals, for example, 12422992901 + ... + 12423013428.

Almost surely, 2^{255019408960856} is an apocalyptic number.

It is an amenable number.

255019408960856 is a deficient number, since it is larger than the sum of its proper divisors (223514672954944).

255019408960856 is a wasteful number, since it uses less digits than its factorization.

255019408960856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24846007618 (or 24846007614 counting only the distinct ones).

The product of its (nonzero) digits is 186624000, while the sum is 68.

The spelling of 255019408960856 in words is "two hundred fifty-five trillion, nineteen billion, four hundred eight million, nine hundred sixty thousand, eight hundred fifty-six".