51111100100108 has 6 divisors (see below), whose sum is σ = 89444425175196. Its totient is φ = 25555550050052.

The previous prime is 51111100100041. The next prime is 51111100100111. The reversal of 51111100100108 is 80100100111115.

It is a super-2 number, since 2×51111100100108² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51111100100108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388887512510 + ... + 6388887512517.

It is an arithmetic number, because the mean of its divisors is an integer number (14907404195866).

Almost surely, 2^{51111100100108} is an apocalyptic number.

It is an amenable number.

51111100100108 is a deficient number, since it is larger than the sum of its proper divisors (38333325075088).

51111100100108 is a wasteful number, since it uses less digits than its factorization.

51111100100108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777775025031 (or 12777775025029 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 20.

The spelling of 51111100100108 in words is "fifty-one trillion, one hundred eleven billion, one hundred million, one hundred thousand, one hundred eight".