166690979018360 has 16 divisors (see below), whose sum is σ = 375054702791400. Its totient is φ = 66676391607328.

The previous prime is 166690979018359. The next prime is 166690979018381. The reversal of 166690979018360 is 63810979096661.

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, 2083637237690 + ... + 2083637237769.

Almost surely, 2^{166690979018360} is an apocalyptic number.

166690979018360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166690979018360 is an abundant number, since it is smaller than the sum of its proper divisors (208363723773040).

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

166690979018360 is a wasteful number, since it uses less digits than its factorization.

166690979018360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167274475470 (or 4167274475466 counting only the distinct ones).

The product of its (nonzero) digits is 158723712, while the sum is 71.

The spelling of 166690979018360 in words is "one hundred sixty-six trillion, six hundred ninety billion, nine hundred seventy-nine million, eighteen thousand, three hundred sixty".