165111122160 has 60 divisors (see below), whose sum is σ = 554498187672. Its totient is φ = 44029632384.

The previous prime is 165111122129. The next prime is 165111122171. The reversal of 165111122160 is 61221111561.

165111122160 is a `hidden beast` number, since 1 + 651 + 1 + 1 + 1 + 2 + 2 + 1 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

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, 114659782 + ... + 114661221.

Almost surely, 2^165111122160 is an apocalyptic number.

165111122160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165111122160 is an abundant number, since it is smaller than the sum of its proper divisors (389387065512).

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

165111122160 is a wasteful number, since it uses less digits than its factorization.

165111122160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229321022 (or 229321013 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 165111122160 in words is "one hundred sixty-five billion, one hundred eleven million, one hundred twenty-two thousand, one hundred sixty".