168865382179 has 4 divisors (see below), whose sum is σ = 181855026976. Its totient is φ = 155875737384.

The previous prime is 168865382143. The next prime is 168865382201. The reversal of 168865382179 is 971283568861.

168865382179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168865382179 - 2⁷ = 168865382051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168865382179.

It is not an unprimeable number, because it can be changed into a prime (168865382779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6494822379 + ... + 6494822404.

It is an arithmetic number, because the mean of its divisors is an integer number (45463756744).

Almost surely, 2^168865382179 is an apocalyptic number.

168865382179 is a deficient number, since it is larger than the sum of its proper divisors (12989644797).

168865382179 is a wasteful number, since it uses less digits than its factorization.

168865382179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989644796.

The product of its digits is 34836480, while the sum is 64.

The spelling of 168865382179 in words is "one hundred sixty-eight billion, eight hundred sixty-five million, three hundred eighty-two thousand, one hundred seventy-nine".