22399971664 has 80 divisors (see below), whose sum is σ = 54328665600. Its totient is φ = 8723699712.

The previous prime is 22399971641. The next prime is 22399971677. The reversal of 22399971664 is 46617999322.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 22399971599 and 22399971608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147624 + ... + 258055.

It is an arithmetic number, because the mean of its divisors is an integer number (679108320).

Almost surely, 2^22399971664 is an apocalyptic number.

It is an amenable number.

22399971664 is an abundant number, since it is smaller than the sum of its proper divisors (31928693936).

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

22399971664 is a wasteful number, since it uses less digits than its factorization.

22399971664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405740 (or 405734 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 58.

The spelling of 22399971664 in words is "twenty-two billion, three hundred ninety-nine million, nine hundred seventy-one thousand, six hundred sixty-four".