166168365396 has 36 divisors (see below), whose sum is σ = 426178373376. Its totient is φ = 50354049680.

The previous prime is 166168365383. The next prime is 166168365431. The reversal of 166168365396 is 693563861661.

It is a super-2 number, since 2×166168365396² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57219060 + ... + 57221963.

Almost surely, 2^166168365396 is an apocalyptic number.

It is an amenable number.

166168365396 is an abundant number, since it is smaller than the sum of its proper divisors (260010007980).

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

166168365396 is a wasteful number, since it uses less digits than its factorization.

166168365396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114441052 (or 114441039 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 60.

The spelling of 166168365396 in words is "one hundred sixty-six billion, one hundred sixty-eight million, three hundred sixty-five thousand, three hundred ninety-six".