22038765568 has 56 divisors (see below), whose sum is σ = 44607239208. Its totient is φ = 10886283264.

The previous prime is 22038765509. The next prime is 22038765569. The reversal of 22038765568 is 86556783022.

It is a super-2 number, since 2×22038765568² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22038765569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663730 + ... + 696142.

It is an arithmetic number, because the mean of its divisors is an integer number (796557843).

Almost surely, 2^22038765568 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 22038765568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22303619604).

22038765568 is an abundant number, since it is smaller than the sum of its proper divisors (22568473640).

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

22038765568 is an frugal number, since it uses more digits than its factorization.

22038765568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32522 (or 32498 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 22038765568 in words is "twenty-two billion, thirty-eight million, seven hundred sixty-five thousand, five hundred sixty-eight".