255891373696 has 32 divisors (see below), whose sum is σ = 582609826080. Its totient is φ = 109667731200.

The previous prime is 255891373679. The next prime is 255891373729. The reversal of 255891373696 is 696373198552.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142795630 + ... + 142797421.

It is an arithmetic number, because the mean of its divisors is an integer number (18206557065).

Almost surely, 2^255891373696 is an apocalyptic number.

It is an amenable number.

255891373696 is an abundant number, since it is smaller than the sum of its proper divisors (326718452384).

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

255891373696 is an equidigital number, since it uses as much as digits as its factorization.

255891373696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285593072 (or 285593060 counting only the distinct ones).

The product of its digits is 73483200, while the sum is 64.

The spelling of 255891373696 in words is "two hundred fifty-five billion, eight hundred ninety-one million, three hundred seventy-three thousand, six hundred ninety-six".