51166372915 has 16 divisors (see below), whose sum is σ = 71882516160. Its totient is φ = 34229767680.

The previous prime is 51166372909. The next prime is 51166372927. The reversal of 51166372915 is 51927366115.

51166372915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-51166372915 is a prime.

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, 17826570 + ... + 17829439.

It is an arithmetic number, because the mean of its divisors is an integer number (4492657260).

Almost surely, 2^51166372915 is an apocalyptic number.

51166372915 is a deficient number, since it is larger than the sum of its proper divisors (20716143245).

51166372915 is a wasteful number, since it uses less digits than its factorization.

51166372915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35656062.

The product of its digits is 340200, while the sum is 46.

The spelling of 51166372915 in words is "fifty-one billion, one hundred sixty-six million, three hundred seventy-two thousand, nine hundred fifteen".