22446669136 has 20 divisors (see below), whose sum is σ = 43509071764. Its totient is φ = 11218521600.

The previous prime is 22446669109. The next prime is 22446669137. The reversal of 22446669136 is 63196664422.

It can be written as a sum of positive squares in 2 ways, for example, as 6200617536 + 16246051600 = 78744^2 + 127460^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22446669136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22446669137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262185 + ... + 337096.

Almost surely, 2^22446669136 is an apocalyptic number.

It is an amenable number.

22446669136 is a deficient number, since it is larger than the sum of its proper divisors (21062402628).

22446669136 is a wasteful number, since it uses less digits than its factorization.

22446669136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601630 (or 601624 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 49.

The spelling of 22446669136 in words is "twenty-two billion, four hundred forty-six million, six hundred sixty-nine thousand, one hundred thirty-six".