168407946177 has 16 divisors (see below), whose sum is σ = 229792438272. Its totient is φ = 109657521360.

The previous prime is 168407946169. The next prime is 168407946193. The reversal of 168407946177 is 771649704861.

It is not a de Polignac number, because 168407946177 - 2³ = 168407946169 is a prime.

It is a super-2 number, since 2×168407946177² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168407946177.

It is not an unprimeable number, because it can be changed into a prime (168407946127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157599 + ... + 1294932.

It is an arithmetic number, because the mean of its divisors is an integer number (14362027392).

Almost surely, 2^168407946177 is an apocalyptic number.

It is an amenable number.

168407946177 is a deficient number, since it is larger than the sum of its proper divisors (61384492095).

168407946177 is a wasteful number, since it uses less digits than its factorization.

168407946177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453068.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 168407946177 in words is "one hundred sixty-eight billion, four hundred seven million, nine hundred forty-six thousand, one hundred seventy-seven".