165610615111107 has 8 divisors (see below), whose sum is σ = 220817998838976. Its totient is φ = 110405154061992.

The previous prime is 165610615111091. The next prime is 165610615111223. The reversal of 165610615111107 is 701111516016561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165610615111107 - 2⁴ = 165610615111091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165610615110107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480468693 + ... + 480813254.

It is an arithmetic number, because the mean of its divisors is an integer number (27602249854872).

Almost surely, 2^{165610615111107} is an apocalyptic number.

165610615111107 is a deficient number, since it is larger than the sum of its proper divisors (55207383727869).

165610615111107 is an equidigital number, since it uses as much as digits as its factorization.

165610615111107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961339377.

The product of its (nonzero) digits is 37800, while the sum is 42.

The spelling of 165610615111107 in words is "one hundred sixty-five trillion, six hundred ten billion, six hundred fifteen million, one hundred eleven thousand, one hundred seven".