55100660665165 has 24 divisors (see below), whose sum is σ = 70270930288800. Its totient is φ = 41468721570048.

The previous prime is 55100660665163. The next prime is 55100660665187. The reversal of 55100660665165 is 56156606600155.

It is not a de Polignac number, because 55100660665165 - 2¹ = 55100660665163 is a prime.

It is a super-2 number, since 2×55100660665165² (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 (55100660665163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5471215 + ... + 11837884.

It is an arithmetic number, because the mean of its divisors is an integer number (2927955428700).

Almost surely, 2^{55100660665165} is an apocalyptic number.

It is an amenable number.

55100660665165 is a deficient number, since it is larger than the sum of its proper divisors (15170269623635).

55100660665165 is a wasteful number, since it uses less digits than its factorization.

55100660665165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311341 (or 17311324 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 55100660665165 in words is "fifty-five trillion, one hundred billion, six hundred sixty million, six hundred sixty-five thousand, one hundred sixty-five".