22660622644 has 24 divisors (see below), whose sum is σ = 43277270400. Its totient is φ = 10296454080.

The previous prime is 22660622609. The next prime is 22660622659. The reversal of 22660622644 is 44622606622.

It is a happy number.

It is a super-2 number, since 2×22660622644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22660622597 and 22660622606.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25717 + ... + 214435.

It is an arithmetic number, because the mean of its divisors is an integer number (1803219600).

Almost surely, 2^22660622644 is an apocalyptic number.

It is an amenable number.

22660622644 is a deficient number, since it is larger than the sum of its proper divisors (20616647756).

22660622644 is a wasteful number, since it uses less digits than its factorization.

22660622644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191463 (or 191461 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 22660622644 in words is "twenty-two billion, six hundred sixty million, six hundred twenty-two thousand, six hundred forty-four".