22043204656 has 40 divisors (see below), whose sum is σ = 47850557904. Its totient is φ = 9748834560.

The previous prime is 22043204639. The next prime is 22043204723. The reversal of 22043204656 is 65640234022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685995 + ... + 1699018.

Almost surely, 2^22043204656 is an apocalyptic number.

It is an amenable number.

22043204656 is an abundant number, since it is smaller than the sum of its proper divisors (25807353248).

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

22043204656 is a wasteful number, since it uses less digits than its factorization.

22043204656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385069 (or 3385063 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 22043204656 its reverse (65640234022), we get a palindrome (87683438678).

The spelling of 22043204656 in words is "twenty-two billion, forty-three million, two hundred four thousand, six hundred fifty-six".