22365223636 has 24 divisors (see below), whose sum is σ = 45398069696. Its totient is φ = 9442033920.

The previous prime is 22365223631. The next prime is 22365223651. The reversal of 22365223636 is 63632256322.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22365223631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5959005 + ... + 5962756.

Almost surely, 2^22365223636 is an apocalyptic number.

It is an amenable number.

22365223636 is an abundant number, since it is smaller than the sum of its proper divisors (23032846060).

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

22365223636 is a wasteful number, since it uses less digits than its factorization.

22365223636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921839 (or 11921837 counting only the distinct ones).

The product of its digits is 466560, while the sum is 40.

Adding to 22365223636 its reverse (63632256322), we get a palindrome (85997479958).

The spelling of 22365223636 in words is "twenty-two billion, three hundred sixty-five million, two hundred twenty-three thousand, six hundred thirty-six".