164544308837 has 2 divisors, whose sum is σ = 164544308838. Its totient is φ = 164544308836.

The previous prime is 164544308701. The next prime is 164544308843. The reversal of 164544308837 is 738803445461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134189609761 + 30354699076 = 366319^2 + 174226^2 .

It is a cyclic number.

It is not a de Polignac number, because 164544308837 - 2⁸ = 164544308581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164544302837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82272154418 + 82272154419.

It is an arithmetic number, because the mean of its divisors is an integer number (82272154419).

Almost surely, 2^164544308837 is an apocalyptic number.

It is an amenable number.

164544308837 is a deficient number, since it is larger than the sum of its proper divisors (1).

164544308837 is an equidigital number, since it uses as much as digits as its factorization.

164544308837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7741440, while the sum is 53.

The spelling of 164544308837 in words is "one hundred sixty-four billion, five hundred forty-four million, three hundred eight thousand, eight hundred thirty-seven".