168516316804 has 48 divisors (see below), whose sum is σ = 332871275520. Its totient is φ = 73942615040.

The previous prime is 168516316799. The next prime is 168516316853. The reversal of 168516316804 is 408613615861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9054132 + ... + 9072724.

It is an arithmetic number, because the mean of its divisors is an integer number (6934818240).

Almost surely, 2^168516316804 is an apocalyptic number.

It is an amenable number.

168516316804 is a deficient number, since it is larger than the sum of its proper divisors (164354958716).

168516316804 is a wasteful number, since it uses less digits than its factorization.

168516316804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25740 (or 25738 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 168516316804 in words is "one hundred sixty-eight billion, five hundred sixteen million, three hundred sixteen thousand, eight hundred four".