51166515616107 has 32 divisors (see below), whose sum is σ = 68778698441472. Its totient is φ = 33833470729344.

The previous prime is 51166515616093. The next prime is 51166515616121. The reversal of 51166515616107 is 70161651566115.

It is an interprime number because it is at equal distance from previous prime (51166515616093) and next prime (51166515616121).

It is not a de Polignac number, because 51166515616107 - 2²² = 51166511421803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51166515616107.

It is not an unprimeable number, because it can be changed into a prime (51166515616157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1398470668 + ... + 1398507254.

It is an arithmetic number, because the mean of its divisors is an integer number (2149334326296).

Almost surely, 2^{51166515616107} is an apocalyptic number.

51166515616107 is a deficient number, since it is larger than the sum of its proper divisors (17612182825365).

51166515616107 is a wasteful number, since it uses less digits than its factorization.

51166515616107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41947.

The product of its (nonzero) digits is 1134000, while the sum is 51.

The spelling of 51166515616107 in words is "fifty-one trillion, one hundred sixty-six billion, five hundred fifteen million, six hundred sixteen thousand, one hundred seven".