166586873718 has 8 divisors (see below), whose sum is σ = 333173747448. Its totient is φ = 55528957904.

The previous prime is 166586873711. The next prime is 166586873729. The reversal of 166586873718 is 817378685661.

It is a sphenic number, since it is the product of 3 distinct primes.

166586873718 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166586873711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13882239471 + ... + 13882239482.

It is an arithmetic number, because the mean of its divisors is an integer number (41646718431).

Almost surely, 2^166586873718 is an apocalyptic number.

166586873718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166586873718 is a wasteful number, since it uses less digits than its factorization.

166586873718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27764478958.

The product of its digits is 81285120, while the sum is 66.

The spelling of 166586873718 in words is "one hundred sixty-six billion, five hundred eighty-six million, eight hundred seventy-three thousand, seven hundred eighteen".