255438834035156 has 24 divisors (see below), whose sum is σ = 447159327370560. Its totient is φ = 127679029918272.

The previous prime is 255438834035123. The next prime is 255438834035171. The reversal of 255438834035156 is 651530438834552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282254975 + ... + 283158521.

It is an arithmetic number, because the mean of its divisors is an integer number (18631638640440).

Almost surely, 2^{255438834035156} is an apocalyptic number.

It is an amenable number.

255438834035156 is a deficient number, since it is larger than the sum of its proper divisors (191720493335404).

255438834035156 is a wasteful number, since it uses less digits than its factorization.

255438834035156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925823 (or 925821 counting only the distinct ones).

The product of its (nonzero) digits is 207360000, while the sum is 62.

The spelling of 255438834035156 in words is "two hundred fifty-five trillion, four hundred thirty-eight billion, eight hundred thirty-four million, thirty-five thousand, one hundred fifty-six".