164544308831 has 8 divisors (see below), whose sum is σ = 191888407200. Its totient is φ = 141037978704.

The previous prime is 164544308701. The next prime is 164544308837. The reversal of 164544308831 is 138803445461.

It is not a de Polignac number, because 164544308831 - 2¹⁸ = 164544046687 is a prime.

It is a super-2 number, since 2×164544308831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164544308837) 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 7 ways as a sum of consecutive naturals, for example, 239860166 + ... + 239860851.

It is an arithmetic number, because the mean of its divisors is an integer number (23986050900).

Almost surely, 2^164544308831 is an apocalyptic number.

164544308831 is a deficient number, since it is larger than the sum of its proper divisors (27344098369).

164544308831 is an frugal number, since it uses more digits than its factorization.

164544308831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479721038 (or 479721024 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 164544308831 in words is "one hundred sixty-four billion, five hundred forty-four million, three hundred eight thousand, eight hundred thirty-one".