164250405302065 has 16 divisors (see below), whose sum is σ = 206147265532416. Its totient is φ = 125395648840000.

The previous prime is 164250405302033. The next prime is 164250405302069. The reversal of 164250405302065 is 560203504052461.

It is not a de Polignac number, because 164250405302065 - 2⁵ = 164250405302033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164250405302069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1656869686 + ... + 1656968815.

It is an arithmetic number, because the mean of its divisors is an integer number (12884204095776).

Almost surely, 2^{164250405302065} is an apocalyptic number.

It is an amenable number.

164250405302065 is a deficient number, since it is larger than the sum of its proper divisors (41896860230351).

164250405302065 is a wasteful number, since it uses less digits than its factorization.

164250405302065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313838960.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 164250405302065 in words is "one hundred sixty-four trillion, two hundred fifty billion, four hundred five million, three hundred two thousand, sixty-five".