22992566689 has 9 divisors (see below), whose sum is σ = 23442767929. Its totient is φ = 22550859760.

The previous prime is 22992566671. The next prime is 22992566693. The reversal of 22992566689 is 98666529922.

The square root of 22992566689 is 151633.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1853733025 + 21138833664 = 43055^2 + 145392^2 .

It is not a de Polignac number, because 22992566689 - 2¹⁷ = 22992435617 is a prime.

It is a super-2 number, since 2×22992566689² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22992566689.

It is not an unprimeable number, because it can be changed into a prime (22992566659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8035119 + ... + 8037979.

Almost surely, 2^22992566689 is an apocalyptic number.

22992566689 is the 151633-rd square number.

22992566689 is the 75817-th centered octagonal number.

It is an amenable number.

22992566689 is a deficient number, since it is larger than the sum of its proper divisors (450201240).

22992566689 is an frugal number, since it uses more digits than its factorization.

22992566689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5828 (or 2914 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 64.

Multiplying 22992566689 by its sum of digits (64), we get a square (1471524268096 = 1213064²).

The spelling of 22992566689 in words is "twenty-two billion, nine hundred ninety-two million, five hundred sixty-six thousand, six hundred eighty-nine".