22765588512 has 96 divisors (see below), whose sum is σ = 61429197312. Its totient is φ = 7376891904.

The previous prime is 22765588453. The next prime is 22765588529. The reversal of 22765588512 is 21588556722.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5514193 + ... + 5518319.

It is an arithmetic number, because the mean of its divisors is an integer number (639887472).

Almost surely, 2^22765588512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22765588512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30714598656).

22765588512 is an abundant number, since it is smaller than the sum of its proper divisors (38663608800).

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

22765588512 is a wasteful number, since it uses less digits than its factorization.

22765588512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730 (or 5722 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 51.

The spelling of 22765588512 in words is "twenty-two billion, seven hundred sixty-five million, five hundred eighty-eight thousand, five hundred twelve".