22905689644 has 6 divisors (see below), whose sum is σ = 40084956884. Its totient is φ = 11452844820.

The previous prime is 22905689591. The next prime is 22905689671. The reversal of 22905689644 is 44698650922.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2863211202 + ... + 2863211209.

Almost surely, 2^22905689644 is an apocalyptic number.

It is an amenable number.

22905689644 is a deficient number, since it is larger than the sum of its proper divisors (17179267240).

22905689644 is a wasteful number, since it uses less digits than its factorization.

22905689644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726422415 (or 5726422413 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 22905689644 in words is "twenty-two billion, nine hundred five million, six hundred eighty-nine thousand, six hundred forty-four".