255557915366 has 12 divisors (see below), whose sum is σ = 415092590892. Its totient is φ = 117949806936.

The previous prime is 255557915317. The next prime is 255557915429. The reversal of 255557915366 is 663519755552.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 378043916 + ... + 378044591.

It is an arithmetic number, because the mean of its divisors is an integer number (34591049241).

Almost surely, 2^255557915366 is an apocalyptic number.

255557915366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

255557915366 is a deficient number, since it is larger than the sum of its proper divisors (159534675526).

255557915366 is a wasteful number, since it uses less digits than its factorization.

255557915366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756088535 (or 756088522 counting only the distinct ones).

The product of its digits is 42525000, while the sum is 59.

The spelling of 255557915366 in words is "two hundred fifty-five billion, five hundred fifty-seven million, nine hundred fifteen thousand, three hundred sixty-six".