164068440685239 has 8 divisors (see below), whose sum is σ = 218812433244912. Its totient is φ = 109351704291200.

The previous prime is 164068440685207. The next prime is 164068440685291. The reversal of 164068440685239 is 932586044860461.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 164068440685239 - 2⁵ = 164068440685207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164068440685239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164068440685439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6814027362 + ... + 6814051439.

It is an arithmetic number, because the mean of its divisors is an integer number (27351554155614).

Almost surely, 2^{164068440685239} is an apocalyptic number.

164068440685239 is a deficient number, since it is larger than the sum of its proper divisors (54743992559673).

164068440685239 is a wasteful number, since it uses less digits than its factorization.

164068440685239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13628082817.

The product of its (nonzero) digits is 238878720, while the sum is 66.

The spelling of 164068440685239 in words is "one hundred sixty-four trillion, sixty-eight billion, four hundred forty million, six hundred eighty-five thousand, two hundred thirty-nine".