22745760521 has 16 divisors (see below), whose sum is σ = 26665329600. Its totient is φ = 19171130880.

The previous prime is 22745760517. The next prime is 22745760523. The reversal of 22745760521 is 12506754722.

It is not a de Polignac number, because 22745760521 - 2² = 22745760517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22745760523) 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, 895196 + ... + 920253.

It is an arithmetic number, because the mean of its divisors is an integer number (1666583100).

Almost surely, 2^22745760521 is an apocalyptic number.

It is an amenable number.

22745760521 is a deficient number, since it is larger than the sum of its proper divisors (3919569079).

22745760521 is a wasteful number, since it uses less digits than its factorization.

22745760521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815544.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 22745760521 in words is "twenty-two billion, seven hundred forty-five million, seven hundred sixty thousand, five hundred twenty-one".