51166666115 has 16 divisors (see below), whose sum is σ = 61972583328. Its totient is φ = 40551952896.

The previous prime is 51166666097. The next prime is 51166666121.

51166666115 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 51166666115 - 2⁶ = 51166666051 is a prime.

It is a Duffinian number.

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, 1243664 + ... + 1284146.

It is an arithmetic number, because the mean of its divisors is an integer number (3873286458).

Almost surely, 2^51166666115 is an apocalyptic number.

51166666115 is a deficient number, since it is larger than the sum of its proper divisors (10805917213).

51166666115 is a wasteful number, since it uses less digits than its factorization.

51166666115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42838.

The product of its digits is 194400, while the sum is 44.

The spelling of 51166666115 in words is "fifty-one billion, one hundred sixty-six million, six hundred sixty-six thousand, one hundred fifteen".