164242225122564 has 24 divisors (see below), whose sum is σ = 383232067561728. Its totient is φ = 54747378525280.

The previous prime is 164242225122539. The next prime is 164242225122659. The reversal of 164242225122564 is 465221522242461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36856474 + ... + 41071694.

It is an arithmetic number, because the mean of its divisors is an integer number (15968002815072).

Almost surely, 2^{164242225122564} is an apocalyptic number.

It is an amenable number.

164242225122564 is an abundant number, since it is smaller than the sum of its proper divisors (218989842439164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164242225122564 is a wasteful number, since it uses less digits than its factorization.

164242225122564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7462235 (or 7462233 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 48.

The spelling of 164242225122564 in words is "one hundred sixty-four trillion, two hundred forty-two billion, two hundred twenty-five million, one hundred twenty-two thousand, five hundred sixty-four".