22644062644 has 24 divisors (see below), whose sum is σ = 46341339968. Its totient is φ = 9478909440.

The previous prime is 22644062633. The next prime is 22644062653. The reversal of 22644062644 is 44626044622.

It is a junction number, because it is equal to n+sod(n) for n = 22644062597 and 22644062606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9402477 + ... + 9404884.

Almost surely, 2^22644062644 is an apocalyptic number.

It is an amenable number.

22644062644 is an abundant number, since it is smaller than the sum of its proper divisors (23697277324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22644062644 is a wasteful number, since it uses less digits than its factorization.

22644062644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18807415 (or 18807413 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 22644062644 in words is "twenty-two billion, six hundred forty-four million, sixty-two thousand, six hundred forty-four".