22661503656 has 64 divisors (see below), whose sum is σ = 62127820800. Its totient is φ = 6831153600.

The previous prime is 22661503651. The next prime is 22661503679. The reversal of 22661503656 is 65630516622.

It is not an unprimeable number, because it can be changed into a prime (22661503651) 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 15 ways as a sum of consecutive naturals, for example, 174286 + ... + 275133.

It is an arithmetic number, because the mean of its divisors is an integer number (970747200).

Almost surely, 2^22661503656 is an apocalyptic number.

It is an amenable number.

22661503656 is an abundant number, since it is smaller than the sum of its proper divisors (39466317144).

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

22661503656 is a wasteful number, since it uses less digits than its factorization.

22661503656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449630 (or 449626 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 22661503656 in words is "twenty-two billion, six hundred sixty-one million, five hundred three thousand, six hundred fifty-six".