255164775651 has 24 divisors (see below), whose sum is σ = 373348364480. Its totient is φ = 167906359296.

The previous prime is 255164775641. The next prime is 255164775653. The reversal of 255164775651 is 156577461552.

255164775651 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 6 + 4 + 77 + 565 + 1 = 666.

It is not a de Polignac number, because 255164775651 - 2²³ = 255156387043 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255164775653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2406021 + ... + 2509833.

Almost surely, 2^255164775651 is an apocalyptic number.

255164775651 is a deficient number, since it is larger than the sum of its proper divisors (118183588829).

255164775651 is a wasteful number, since it uses less digits than its factorization.

255164775651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107355 (or 107352 counting only the distinct ones).

The product of its digits is 8820000, while the sum is 54.

The spelling of 255164775651 in words is "two hundred fifty-five billion, one hundred sixty-four million, seven hundred seventy-five thousand, six hundred fifty-one".