65609090592 has 48 divisors (see below), whose sum is σ = 172256448672. Its totient is φ = 21865559040.

The previous prime is 65609090537. The next prime is 65609090609. The reversal of 65609090592 is 29509090656.

It is a tau number, because it is divible by the number of its divisors (48).

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, 468123 + ... + 591909.

It is an arithmetic number, because the mean of its divisors is an integer number (3588676014).

Almost surely, 2^65609090592 is an apocalyptic number.

It is an amenable number.

65609090592 is an abundant number, since it is smaller than the sum of its proper divisors (106647358080).

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

65609090592 is a wasteful number, since it uses less digits than its factorization.

65609090592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129321 (or 129313 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 51.

The spelling of 65609090592 in words is "sixty-five billion, six hundred nine million, ninety thousand, five hundred ninety-two".