51506560772360 has 64 divisors (see below), whose sum is σ = 117385493425200. Its totient is φ = 20337808490496.

The previous prime is 51506560772339. The next prime is 51506560772371. The reversal of 51506560772360 is 6327706560515.

It can be written as a sum of positive squares in 8 ways, for example, as 1431435173476 + 50075125598884 = 1196426^2 + 7076378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15553517 + ... + 18572156.

Almost surely, 2^{51506560772360} is an apocalyptic number.

It is an amenable number.

51506560772360 is an abundant number, since it is smaller than the sum of its proper divisors (65878932652840).

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

51506560772360 is a wasteful number, since it uses less digits than its factorization.

51506560772360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34126170 (or 34126166 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 53.

The spelling of 51506560772360 in words is "fifty-one trillion, five hundred six billion, five hundred sixty million, seven hundred seventy-two thousand, three hundred sixty".