166118376182 has 48 divisors (see below), whose sum is σ = 278742900240. Its totient is φ = 74172246720.

The previous prime is 166118376173. The next prime is 166118376187. The reversal of 166118376182 is 281673811661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 166118376182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166118376187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23026808 + ... + 23034020.

It is an arithmetic number, because the mean of its divisors is an integer number (5807143755).

Almost surely, 2^166118376182 is an apocalyptic number.

166118376182 is a deficient number, since it is larger than the sum of its proper divisors (112624524058).

166118376182 is a wasteful number, since it uses less digits than its factorization.

166118376182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8909 (or 8898 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The spelling of 166118376182 in words is "one hundred sixty-six billion, one hundred eighteen million, three hundred seventy-six thousand, one hundred eighty-two".