22256693536 has 144 divisors (see below), whose sum is σ = 56821685760. Its totient is φ = 8391398400.

The previous prime is 22256693533. The next prime is 22256693579. The reversal of 22256693536 is 63539665222.

It is a self number, because there is not a number n which added to its sum of digits gives 22256693536.

It is not an unprimeable number, because it can be changed into a prime (22256693531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 826980 + ... + 853468.

It is an arithmetic number, because the mean of its divisors is an integer number (394595040).

Almost surely, 2^22256693536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22256693536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28410842880).

22256693536 is an abundant number, since it is smaller than the sum of its proper divisors (34564992224).

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

22256693536 is a wasteful number, since it uses less digits than its factorization.

22256693536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26559 (or 26540 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 49.

The spelling of 22256693536 in words is "twenty-two billion, two hundred fifty-six million, six hundred ninety-three thousand, five hundred thirty-six".