168164392831 has 8 divisors (see below), whose sum is σ = 168585177600. Its totient is φ = 167743899480.

The previous prime is 168164392789. The next prime is 168164392841. The reversal of 168164392831 is 138293461861.

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 168164392831 - 2³⁵ = 133804654463 is a prime.

It is a super-2 number, since 2×168164392831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168164392841) 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, 1106476 + ... + 1249246.

It is an arithmetic number, because the mean of its divisors is an integer number (21073147200).

Almost surely, 2^168164392831 is an apocalyptic number.

168164392831 is a deficient number, since it is larger than the sum of its proper divisors (420784769).

168164392831 is a wasteful number, since it uses less digits than its factorization.

168164392831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145709.

The product of its digits is 1492992, while the sum is 52.

The spelling of 168164392831 in words is "one hundred sixty-eight billion, one hundred sixty-four million, three hundred ninety-two thousand, eight hundred thirty-one".