168668372 has 24 divisors (see below), whose sum is σ = 298517184. Its totient is φ = 83383232.

The previous prime is 168668369. The next prime is 168668387. The reversal of 168668372 is 273866861.

168668372 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189713 + ... + 190599.

It is an arithmetic number, because the mean of its divisors is an integer number (12438216).

Almost surely, 2^168668372 is an apocalyptic number.

It is an amenable number.

168668372 is a deficient number, since it is larger than the sum of its proper divisors (129848812).

168668372 is a wasteful number, since it uses less digits than its factorization.

168668372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375 (or 1373 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 168668372 is about 12987.2388135431. The cubic root of 168668372 is about 552.5156081666.

The spelling of 168668372 in words is "one hundred sixty-eight million, six hundred sixty-eight thousand, three hundred seventy-two".