168647980908 has 48 divisors (see below), whose sum is σ = 439756168320. Its totient is φ = 49858972800.

The previous prime is 168647980859. The next prime is 168647980933. The reversal of 168647980908 is 809089746861.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 15575518 + ... + 15586341.

It is an arithmetic number, because the mean of its divisors is an integer number (9161586840).

Almost surely, 2^168647980908 is an apocalyptic number.

It is an amenable number.

168647980908 is an abundant number, since it is smaller than the sum of its proper divisors (271108187412).

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

168647980908 is a wasteful number, since it uses less digits than its factorization.

168647980908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31161918 (or 31161916 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 66.

The spelling of 168647980908 in words is "one hundred sixty-eight billion, six hundred forty-seven million, nine hundred eighty thousand, nine hundred eight".