51166106807718 has 96 divisors (see below), whose sum is σ = 125964655096320. Its totient is φ = 13786336058880.

The previous prime is 51166106807659. The next prime is 51166106807731. The reversal of 51166106807718 is 81770860166115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52806603 + ... + 53766806.

It is an arithmetic number, because the mean of its divisors is an integer number (1312131823920).

Almost surely, 2^{51166106807718} is an apocalyptic number.

51166106807718 is an abundant number, since it is smaller than the sum of its proper divisors (74798548288602).

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

51166106807718 is a wasteful number, since it uses less digits than its factorization.

51166106807718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106573522 (or 106573515 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 57.

The spelling of 51166106807718 in words is "fifty-one trillion, one hundred sixty-six billion, one hundred six million, eight hundred seven thousand, seven hundred eighteen".