51631414522155 has 192 divisors, whose sum is σ = 102526067105280. Its totient is φ = 23811430809600.

The previous prime is 51631414522123. The next prime is 51631414522183. The reversal of 51631414522155 is 55122541413615.

51631414522155 is a `hidden beast` number, since 5 + 1 + 6 + 3 + 1 + 41 + 452 + 2 + 155 = 666.

It is not a de Polignac number, because 51631414522155 - 2⁵ = 51631414522123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51631414522155.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2881047595 + ... + 2881065515.

It is an arithmetic number, because the mean of its divisors is an integer number (533989932840).

Almost surely, 2^{51631414522155} is an apocalyptic number.

51631414522155 is a deficient number, since it is larger than the sum of its proper divisors (50894652583125).

51631414522155 is a wasteful number, since it uses less digits than its factorization.

51631414522155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19302 (or 19299 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 51631414522155 in words is "fifty-one trillion, six hundred thirty-one billion, four hundred fourteen million, five hundred twenty-two thousand, one hundred fifty-five".