22303331649 has 27 divisors (see below), whose sum is σ = 32748010113. Its totient is φ = 14627250792.

The previous prime is 22303331627. The next prime is 22303331663. The reversal of 22303331649 is 94613330322.

The square root of 22303331649 is 149343.

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

22303331649 is a `hidden beast` number, since 2 + 2 + 3 + 0 + 3 + 3 + 3 + 1 + 649 = 666.

It is not a de Polignac number, because 22303331649 - 2⁷ = 22303331521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22303351649) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 30017572 + ... + 30018314.

Almost surely, 2^22303331649 is an apocalyptic number.

22303331649 is the 149343-rd square number.

22303331649 is the 74672-nd centered octagonal number.

It is an amenable number.

22303331649 is a deficient number, since it is larger than the sum of its proper divisors (10444678464).

22303331649 is an frugal number, since it uses more digits than its factorization.

22303331649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

Multiplying 22303331649 by its sum of digits (36), we get a square (802919939364 = 896058²).

The spelling of 22303331649 in words is "twenty-two billion, three hundred three million, three hundred thirty-one thousand, six hundred forty-nine".