22219968456 has 864 divisors, whose sum is σ = 82987257600. Its totient is φ = 5329981440.

The previous prime is 22219968451. The next prime is 22219968481. The reversal of 22219968456 is 65486991222.

22219968456 is a `hidden beast` number, since 22 + 21 + 99 + 68 + 456 = 666.

It is not an unprimeable number, because it can be changed into a prime (22219968451) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 600539670 + ... + 600539706.

Almost surely, 2^22219968456 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 22219968456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41493628800).

22219968456 is an abundant number, since it is smaller than the sum of its proper divisors (60767289144).

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

22219968456 is a wasteful number, since it uses less digits than its factorization.

22219968456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 116 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 22219968456 in words is "twenty-two billion, two hundred nineteen million, nine hundred sixty-eight thousand, four hundred fifty-six".