168161372 has 24 divisors (see below), whose sum is σ = 317671200. Its totient is φ = 77650496.

The previous prime is 168161369. The next prime is 168161429. The reversal of 168161372 is 273161861.

168161372 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28847 + ... + 34182.

It is an arithmetic number, because the mean of its divisors is an integer number (13236300).

Almost surely, 2^168161372 is an apocalyptic number.

It is an amenable number.

168161372 is a deficient number, since it is larger than the sum of its proper divisors (149509828).

168161372 is a wasteful number, since it uses less digits than its factorization.

168161372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63085 (or 63083 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 168161372 is about 12967.7049627141. The cubic root of 168161372 is about 551.9614506091.

The spelling of 168161372 in words is "one hundred sixty-eight million, one hundred sixty-one thousand, three hundred seventy-two".