51101550111165 has 16 divisors (see below), whose sum is σ = 81833393024448. Its totient is φ = 27230522443776.

The previous prime is 51101550111137. The next prime is 51101550111169. The reversal of 51101550111165 is 56111105510115.

It is not a de Polignac number, because 51101550111165 - 2⁸ = 51101550110909 is a prime.

It is a super-2 number, since 2×51101550111165² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51101550111169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1477333099 + ... + 1477367688.

It is an arithmetic number, because the mean of its divisors is an integer number (5114587064028).

Almost surely, 2^{51101550111165} is an apocalyptic number.

It is an amenable number.

51101550111165 is a deficient number, since it is larger than the sum of its proper divisors (30731842913283).

51101550111165 is a wasteful number, since it uses less digits than its factorization.

51101550111165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954701948.

The product of its (nonzero) digits is 3750, while the sum is 33.

The spelling of 51101550111165 in words is "fifty-one trillion, one hundred one billion, five hundred fifty million, one hundred eleven thousand, one hundred sixty-five".