165610615111116 has 48 divisors (see below), whose sum is σ = 443346705102336. Its totient is φ = 47133204516864.

The previous prime is 165610615111091. The next prime is 165610615111223. The reversal of 165610615111116 is 611111516016561.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3835688416 + ... + 3835731591.

It is an arithmetic number, because the mean of its divisors is an integer number (9236389689632).

Almost surely, 2^{165610615111116} is an apocalyptic number.

It is an amenable number.

165610615111116 is an abundant number, since it is smaller than the sum of its proper divisors (277736089991220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165610615111116 is a wasteful number, since it uses less digits than its factorization.

165610615111116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7671420278 (or 7671420276 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 42.

The spelling of 165610615111116 in words is "one hundred sixty-five trillion, six hundred ten billion, six hundred fifteen million, one hundred eleven thousand, one hundred sixteen".