168375720 has 64 divisors (see below), whose sum is σ = 531720000. Its totient is φ = 42536448.

The previous prime is 168375707. The next prime is 168375731. The reversal of 168375720 is 27573861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34645 + ... + 39204.

It is an arithmetic number, because the mean of its divisors is an integer number (8308125).

Almost surely, 2^168375720 is an apocalyptic number.

168375720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168375720 is an abundant number, since it is smaller than the sum of its proper divisors (363344280).

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

168375720 is a wasteful number, since it uses less digits than its factorization.

168375720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73882 (or 73878 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 168375720 is about 12975.9670159877. The cubic root of 168375720 is about 552.1958714676.

The spelling of 168375720 in words is "one hundred sixty-eight million, three hundred seventy-five thousand, seven hundred twenty".