165615106216 has 64 divisors (see below), whose sum is σ = 372678670080. Its totient is φ = 67459392000.

The previous prime is 165615106169. The next prime is 165615106231. The reversal of 165615106216 is 612601516561.

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, 207285 + ... + 611716.

It is an arithmetic number, because the mean of its divisors is an integer number (5823104220).

Almost surely, 2^165615106216 is an apocalyptic number.

It is an amenable number.

165615106216 is an abundant number, since it is smaller than the sum of its proper divisors (207063563864).

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

165615106216 is a wasteful number, since it uses less digits than its factorization.

165615106216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819194 (or 819190 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 165615106216 in words is "one hundred sixty-five billion, six hundred fifteen million, one hundred six thousand, two hundred sixteen".