22446620664420 has 48 divisors (see below), whose sum is σ = 62856887421888. Its totient is φ = 5985160790400.

The previous prime is 22446620664389. The next prime is 22446620664437. The reversal of 22446620664420 is 2446602664422.

22446620664420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 22446620664420.

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, 18298494 + ... + 19486613.

It is an arithmetic number, because the mean of its divisors is an integer number (1309518487956).

Almost surely, 2^{22446620664420} is an apocalyptic number.

22446620664420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22446620664420 is an abundant number, since it is smaller than the sum of its proper divisors (40410266757468).

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

22446620664420 is a wasteful number, since it uses less digits than its factorization.

22446620664420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37795020 (or 37795018 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 48.

The spelling of 22446620664420 in words is "twenty-two trillion, four hundred forty-six billion, six hundred twenty million, six hundred sixty-four thousand, four hundred twenty".