255661766751000 has 128 divisors (see below), whose sum is σ = 801445115727360. Its totient is φ = 67853359728000.

The previous prime is 255661766750989. The next prime is 255661766751019. The reversal of 255661766751000 is 157667166552.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201311524 + ... + 202577523.

It is an arithmetic number, because the mean of its divisors is an integer number (6261289966620).

Almost surely, 2^{255661766751000} is an apocalyptic number.

255661766751000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255661766751000 is an abundant number, since it is smaller than the sum of its proper divisors (545783348976360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255661766751000 is a wasteful number, since it uses less digits than its factorization.

255661766751000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403889282 (or 403889268 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 57.

The spelling of 255661766751000 in words is "two hundred fifty-five trillion, six hundred sixty-one billion, seven hundred sixty-six million, seven hundred fifty-one thousand".