168091604904 has 32 divisors (see below), whose sum is σ = 438499840320. Its totient is φ = 53594424576.

The previous prime is 168091604851. The next prime is 168091604911. The reversal of 168091604904 is 409406190861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152256337 + ... + 152257440.

It is an arithmetic number, because the mean of its divisors is an integer number (13703120010).

Almost surely, 2^168091604904 is an apocalyptic number.

It is an amenable number.

168091604904 is an abundant number, since it is smaller than the sum of its proper divisors (270408235416).

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

168091604904 is a wasteful number, since it uses less digits than its factorization.

168091604904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304513809 (or 304513805 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 168091604904 in words is "one hundred sixty-eight billion, ninety-one million, six hundred four thousand, nine hundred four".