22556473646 has 16 divisors (see below), whose sum is σ = 38745744000. Its totient is φ = 9647684280.

The previous prime is 22556473633. The next prime is 22556473649. The reversal of 22556473646 is 64637465522.

It is a junction number, because it is equal to n+sod(n) for n = 22556473594 and 22556473603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22556473649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607420 + ... + 1621391.

It is an arithmetic number, because the mean of its divisors is an integer number (2421609000).

Almost surely, 2^22556473646 is an apocalyptic number.

22556473646 is a deficient number, since it is larger than the sum of its proper divisors (16189270354).

22556473646 is a wasteful number, since it uses less digits than its factorization.

22556473646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229319.

The product of its digits is 7257600, while the sum is 50.

The spelling of 22556473646 in words is "twenty-two billion, five hundred fifty-six million, four hundred seventy-three thousand, six hundred forty-six".