255104131215555 has 96 divisors (see below), whose sum is σ = 449130734357760. Its totient is φ = 133929589812480.

The previous prime is 255104131215509. The next prime is 255104131215589. The reversal of 255104131215555 is 555512131401552.

255104131215555 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 0 + 41 + 31 + 21 + 5 + 555 = 666.

It is not a de Polignac number, because 255104131215555 - 2²² = 255104127021251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 255104131215555.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1445203612 + ... + 1445380118.

It is an arithmetic number, because the mean of its divisors is an integer number (4678445149560).

Almost surely, 2^{255104131215555} is an apocalyptic number.

255104131215555 is a deficient number, since it is larger than the sum of its proper divisors (194026603142205).

255104131215555 is a wasteful number, since it uses less digits than its factorization.

255104131215555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178001 (or 177998 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 45.

The spelling of 255104131215555 in words is "two hundred fifty-five trillion, one hundred four billion, one hundred thirty-one million, two hundred fifteen thousand, five hundred fifty-five".