22563448636 has 24 divisors (see below), whose sum is σ = 39787020000. Its totient is φ = 11196022464.

The previous prime is 22563448631. The next prime is 22563448643. The reversal of 22563448636 is 63684436522.

It is a self number, because there is not a number n which added to its sum of digits gives 22563448636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563448631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273210 + ... + 346078.

It is an arithmetic number, because the mean of its divisors is an integer number (1657792500).

Almost surely, 2^22563448636 is an apocalyptic number.

It is an amenable number.

22563448636 is a deficient number, since it is larger than the sum of its proper divisors (17223571364).

22563448636 is a wasteful number, since it uses less digits than its factorization.

22563448636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73461 (or 73459 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 49.

The spelling of 22563448636 in words is "twenty-two billion, five hundred sixty-three million, four hundred forty-eight thousand, six hundred thirty-six".