168722860 has 12 divisors (see below), whose sum is σ = 354318048. Its totient is φ = 67489136.

The previous prime is 168722819. The next prime is 168722881. The reversal of 168722860 is 68227861.

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 3 ways as a sum of consecutive naturals, for example, 4218052 + ... + 4218091.

It is an arithmetic number, because the mean of its divisors is an integer number (29526504).

Almost surely, 2^168722860 is an apocalyptic number.

168722860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168722860 is an abundant number, since it is smaller than the sum of its proper divisors (185595188).

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

168722860 is a wasteful number, since it uses less digits than its factorization.

168722860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436152 (or 8436150 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 168722860 is about 12989.3363956747. The cubic root of 168722860 is about 552.5750981366.

The spelling of 168722860 in words is "one hundred sixty-eight million, seven hundred twenty-two thousand, eight hundred sixty".