168520068 has 24 divisors (see below), whose sum is σ = 436904160. Its totient is φ = 56173320.

The previous prime is 168520049. The next prime is 168520081. The reversal of 168520068 is 860025861.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 7 ways as a sum of consecutive naturals, for example, 780078 + ... + 780293.

It is an arithmetic number, because the mean of its divisors is an integer number (18204340).

Almost surely, 2^168520068 is an apocalyptic number.

168520068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

168520068 is an abundant number, since it is smaller than the sum of its proper divisors (268384092).

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

168520068 is a wasteful number, since it uses less digits than its factorization.

168520068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560384 (or 1560376 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 168520068 is about 12981.5279532111. The cubic root of 168520068 is about 552.3536250174.

The spelling of 168520068 in words is "one hundred sixty-eight million, five hundred twenty thousand, sixty-eight".