22288163644 has 12 divisors (see below), whose sum is σ = 39062246944. Its totient is φ = 11127521664.

The previous prime is 22288163621. The next prime is 22288163671. The reversal of 22288163644 is 44636188222.

It is a junction number, because it is equal to n+sod(n) for n = 22288163594 and 22288163603.

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 3 ways as a sum of consecutive naturals, for example, 4137012 + ... + 4142395.

Almost surely, 2^22288163644 is an apocalyptic number.

It is an amenable number.

22288163644 is a deficient number, since it is larger than the sum of its proper divisors (16774083300).

22288163644 is a wasteful number, since it uses less digits than its factorization.

22288163644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280084 (or 8280082 counting only the distinct ones).

The product of its digits is 884736, while the sum is 46.

The spelling of 22288163644 in words is "twenty-two billion, two hundred eighty-eight million, one hundred sixty-three thousand, six hundred forty-four".