168407946172 has 12 divisors (see below), whose sum is σ = 294724401160. Its totient is φ = 84200974416.

The previous prime is 168407946169. The next prime is 168407946193. The reversal of 168407946172 is 271649704861.

168407946172 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168407946172² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620847 + ... + 849862.

Almost surely, 2^168407946172 is an apocalyptic number.

It is an amenable number.

168407946172 is a deficient number, since it is larger than the sum of its proper divisors (126316454988).

168407946172 is a wasteful number, since it uses less digits than its factorization.

168407946172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499340 (or 1499338 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 168407946172 in words is "one hundred sixty-eight billion, four hundred seven million, nine hundred forty-six thousand, one hundred seventy-two".