165216966168 has 32 divisors (see below), whose sum is σ = 413080335360. Its totient is φ = 55067266080.

The previous prime is 165216966163. The next prime is 165216966179. The reversal of 165216966168 is 861669612561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165216966163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44368 + ... + 576543.

It is an arithmetic number, because the mean of its divisors is an integer number (12908760480).

Almost surely, 2^165216966168 is an apocalyptic number.

It is an amenable number.

165216966168 is an abundant number, since it is smaller than the sum of its proper divisors (247863369192).

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

165216966168 is a wasteful number, since it uses less digits than its factorization.

165216966168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632007 (or 632003 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 57.

The spelling of 165216966168 in words is "one hundred sixty-five billion, two hundred sixteen million, nine hundred sixty-six thousand, one hundred sixty-eight".