22564040540 has 24 divisors (see below), whose sum is σ = 47658391200. Its totient is φ = 8973443648.

The previous prime is 22564040503. The next prime is 22564040549. The reversal of 22564040540 is 4504046522.

It is a junction number, because it is equal to n+sod(n) for n = 22564040497 and 22564040506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22564040549) 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, 3257240 + ... + 3264159.

It is an arithmetic number, because the mean of its divisors is an integer number (1985766300).

Almost surely, 2^22564040540 is an apocalyptic number.

22564040540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22564040540 is an abundant number, since it is smaller than the sum of its proper divisors (25094350660).

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

22564040540 is a wasteful number, since it uses less digits than its factorization.

22564040540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6521581 (or 6521579 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 22564040540 in words is "twenty-two billion, five hundred sixty-four million, forty thousand, five hundred forty".