255866922297 has 24 divisors (see below), whose sum is σ = 436008768000. Its totient is φ = 141493227840.

The previous prime is 255866922221. The next prime is 255866922301. The reversal of 255866922297 is 792229668552.

255866922297 is a `hidden beast` number, since 2 + 5 + 586 + 6 + 9 + 22 + 29 + 7 = 666.

It is not a de Polignac number, because 255866922297 - 2¹⁵ = 255866889529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (255866922217) 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, 65504172 + ... + 65508077.

It is an arithmetic number, because the mean of its divisors is an integer number (18167032000).

Almost surely, 2^255866922297 is an apocalyptic number.

It is an amenable number.

255866922297 is a deficient number, since it is larger than the sum of its proper divisors (180141845703).

255866922297 is a wasteful number, since it uses less digits than its factorization.

255866922297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131012293 (or 131012290 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 63.

The spelling of 255866922297 in words is "two hundred fifty-five billion, eight hundred sixty-six million, nine hundred twenty-two thousand, two hundred ninety-seven".