165116611503216 has 60 divisors (see below), whose sum is σ = 462098058018168. Its totient is φ = 55038766349952.

The previous prime is 165116611503197. The next prime is 165116611503287. The reversal of 165116611503216 is 612305116611561.

165116611503216 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 1 + 6 + 611 + 5 + 0 + 3 + 21 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130497226 + ... + 131756438.

Almost surely, 2^{165116611503216} is an apocalyptic number.

165116611503216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165116611503216 is an abundant number, since it is smaller than the sum of its proper divisors (296981446514952).

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

165116611503216 is a wasteful number, since it uses less digits than its factorization.

165116611503216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169830 (or 2169821 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 165116611503216 in words is "one hundred sixty-five trillion, one hundred sixteen billion, six hundred eleven million, five hundred three thousand, two hundred sixteen".