168330631812372 has 144 divisors (see below), whose sum is σ = 453919166168832. Its totient is φ = 52412745369600.

The previous prime is 168330631812359. The next prime is 168330631812373. The reversal of 168330631812372 is 273218136033861.

168330631812372 is a `hidden beast` number, since 1 + 6 + 8 + 3 + 30 + 63 + 181 + 2 + 372 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168330631812373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389742613 + ... + 390174275.

It is an arithmetic number, because the mean of its divisors is an integer number (3152216431728).

Almost surely, 2^{168330631812372} is an apocalyptic number.

168330631812372 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 168330631812372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226959583084416).

168330631812372 is an abundant number, since it is smaller than the sum of its proper divisors (285588534356460).

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

168330631812372 is a wasteful number, since it uses less digits than its factorization.

168330631812372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436478 (or 436473 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 168330631812372 in words is "one hundred sixty-eight trillion, three hundred thirty billion, six hundred thirty-one million, eight hundred twelve thousand, three hundred seventy-two".