166690979018362 has 16 divisors (see below), whose sum is σ = 253873219878432. Its totient is φ = 82073114168400.

The previous prime is 166690979018359. The next prime is 166690979018381. The reversal of 166690979018362 is 263810979096661.

It is a super-3 number, since 3×166690979018362³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635392889 + ... + 1635494812.

It is an arithmetic number, because the mean of its divisors is an integer number (15867076242402).

Almost surely, 2^{166690979018362} is an apocalyptic number.

166690979018362 is a deficient number, since it is larger than the sum of its proper divisors (87182240860070).

166690979018362 is a wasteful number, since it uses less digits than its factorization.

166690979018362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270888093.

The product of its (nonzero) digits is 317447424, while the sum is 73.

The spelling of 166690979018362 in words is "one hundred sixty-six trillion, six hundred ninety billion, nine hundred seventy-nine million, eighteen thousand, three hundred sixty-two".