22505053660440 has 64 divisors (see below), whose sum is σ = 72708634908000. Its totient is φ = 5539705516032.

The previous prime is 22505053660429. The next prime is 22505053660447. The reversal of 22505053660440 is 4406635050522.

It is a junction number, because it is equal to n+sod(n) for n = 22505053660392 and 22505053660401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22505053660447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7213156665 + ... + 7213159784.

Almost surely, 2^{22505053660440} is an apocalyptic number.

22505053660440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22505053660440 is an abundant number, since it is smaller than the sum of its proper divisors (50203581247560).

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

22505053660440 is a wasteful number, since it uses less digits than its factorization.

22505053660440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14426316476 (or 14426316472 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 22505053660440 in words is "twenty-two trillion, five hundred five billion, fifty-three million, six hundred sixty thousand, four hundred forty".