160516969721172 has 72 divisors (see below), whose sum is σ = 420781724536992. Its totient is φ = 53505316778400.

The previous prime is 160516969721161. The next prime is 160516969721191. The reversal of 160516969721172 is 271127969615061.

160516969721172 is a `hidden beast` number, since 1 + 6 + 0 + 516 + 9 + 6 + 97 + 21 + 1 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 187139922 + ... + 187995702.

Almost surely, 2^{160516969721172} is an apocalyptic number.

160516969721172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

160516969721172 is an abundant number, since it is smaller than the sum of its proper divisors (260264754815820).

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

160516969721172 is a wasteful number, since it uses less digits than its factorization.

160516969721172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048771 (or 1048757 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 63.

The spelling of 160516969721172 in words is "one hundred sixty trillion, five hundred sixteen billion, nine hundred sixty-nine million, seven hundred twenty-one thousand, one hundred seventy-two".