22561549492 has 12 divisors (see below), whose sum is σ = 39793600000. Its totient is φ = 11191949496.

The previous prime is 22561549477. The next prime is 22561549519. The reversal of 22561549492 is 29494516522.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22205742 + ... + 22206757.

Almost surely, 2^22561549492 is an apocalyptic number.

It is an amenable number.

22561549492 is a deficient number, since it is larger than the sum of its proper divisors (17232050508).

22561549492 is a wasteful number, since it uses less digits than its factorization.

22561549492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44412630 (or 44412628 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The spelling of 22561549492 in words is "twenty-two billion, five hundred sixty-one million, five hundred forty-nine thousand, four hundred ninety-two".