51118707520611 has 96 divisors (see below), whose sum is σ = 77929919907840. Its totient is φ = 32248748505600.

The previous prime is 51118707520607. The next prime is 51118707520619. The reversal of 51118707520611 is 11602570781115.

51118707520611 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 8 + 7 + 0 + 7 + 5 + 20 + 611 = 666.

It is not a de Polignac number, because 51118707520611 - 2² = 51118707520607 is a prime.

It is a super-2 number, since 2×51118707520611² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51118707520619) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2450903295 + ... + 2450924151.

It is an arithmetic number, because the mean of its divisors is an integer number (811769999040).

Almost surely, 2^{51118707520611} is an apocalyptic number.

51118707520611 is a deficient number, since it is larger than the sum of its proper divisors (26811212387229).

51118707520611 is a wasteful number, since it uses less digits than its factorization.

51118707520611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22057 (or 22054 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 45.

The spelling of 51118707520611 in words is "fifty-one trillion, one hundred eighteen billion, seven hundred seven million, five hundred twenty thousand, six hundred eleven".