22634506665 has 12 divisors (see below), whose sum is σ = 39233144964. Its totient is φ = 12071736864.

The previous prime is 22634506597. The next prime is 22634506667. The reversal of 22634506665 is 56660543622.

It can be written as a sum of positive squares in 2 ways, for example, as 6559056144 + 16075450521 = 80988^2 + 126789^2 .

It is not a de Polignac number, because 22634506665 - 2²² = 22630312361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 502989037 = 22634506665 / (2 + 2 + 6 + 3 + 4 + 5 + 0 + 6 + 6 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 22634506665.

It is not an unprimeable number, because it can be changed into a prime (22634506667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251494474 + ... + 251494563.

It is an arithmetic number, because the mean of its divisors is an integer number (3269428747).

Almost surely, 2^22634506665 is an apocalyptic number.

It is an amenable number.

22634506665 is a deficient number, since it is larger than the sum of its proper divisors (16598638299).

22634506665 is a wasteful number, since it uses less digits than its factorization.

22634506665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502989048 (or 502989045 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 22634506665 in words is "twenty-two billion, six hundred thirty-four million, five hundred six thousand, six hundred sixty-five".