168120916464 has 80 divisors (see below), whose sum is σ = 435512125440. Its totient is φ = 55885689600.

The previous prime is 168120916427. The next prime is 168120916477. The reversal of 168120916464 is 464619021861.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 47665069 + ... + 47668595.

It is an arithmetic number, because the mean of its divisors is an integer number (5443901568).

Almost surely, 2^168120916464 is an apocalyptic number.

It is an amenable number.

168120916464 is an abundant number, since it is smaller than the sum of its proper divisors (267391208976).

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

168120916464 is a wasteful number, since it uses less digits than its factorization.

168120916464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5998 (or 5992 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 168120916464 in words is "one hundred sixty-eight billion, one hundred twenty million, nine hundred sixteen thousand, four hundred sixty-four".