168156672 has 80 divisors (see below), whose sum is σ = 453720960. Its totient is φ = 55334912.

The previous prime is 168156643. The next prime is 168156691. The reversal of 168156672 is 276651861.

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, 126829 + ... + 128147.

It is an arithmetic number, because the mean of its divisors is an integer number (5671512).

Almost surely, 2^168156672 is an apocalyptic number.

168156672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168156672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226860480).

168156672 is an abundant number, since it is smaller than the sum of its proper divisors (285564288).

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

168156672 is an equidigital number, since it uses as much as digits as its factorization.

168156672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1407 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 168156672 is about 12967.5237420257. The cubic root of 168156672 is about 551.9563082410.

The spelling of 168156672 in words is "one hundred sixty-eight million, one hundred fifty-six thousand, six hundred seventy-two".