22553544440 has 64 divisors (see below), whose sum is σ = 58022300160. Its totient is φ = 7728981120.

The previous prime is 22553544397. The next prime is 22553544463. The reversal of 22553544440 is 4444535522.

It is a junction number, because it is equal to n+sod(n) for n = 22553544394 and 22553544403.

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, 610085 + ... + 645995.

It is an arithmetic number, because the mean of its divisors is an integer number (906598440).

Almost surely, 2^22553544440 is an apocalyptic number.

22553544440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22553544440 is an abundant number, since it is smaller than the sum of its proper divisors (35468755720).

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

22553544440 is a wasteful number, since it uses less digits than its factorization.

22553544440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38172 (or 38168 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 38.

The spelling of 22553544440 in words is "twenty-two billion, five hundred fifty-three million, five hundred forty-four thousand, four hundred forty".