168723164 has 24 divisors (see below), whose sum is σ = 315569520. Its totient is φ = 78653696.

The previous prime is 168723161. The next prime is 168723169. The reversal of 168723164 is 461327861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168723161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4319 + ... + 18870.

It is an arithmetic number, because the mean of its divisors is an integer number (13148730).

Almost surely, 2^168723164 is an apocalyptic number.

It is an amenable number.

168723164 is a deficient number, since it is larger than the sum of its proper divisors (146846356).

168723164 is a wasteful number, since it uses less digits than its factorization.

168723164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23317 (or 23315 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 168723164 is about 12989.3480975760. The cubic root of 168723164 is about 552.5754300078.

The spelling of 168723164 in words is "one hundred sixty-eight million, seven hundred twenty-three thousand, one hundred sixty-four".