22057560648 has 108 divisors (see below), whose sum is σ = 62531683305. Its totient is φ = 7023603840.

The previous prime is 22057560643. The next prime is 22057560649. The reversal of 22057560648 is 84606575022.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22057560648 is a `hidden beast` number, since 2 + 20 + 5 + 7 + 560 + 64 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12157708644 + 9899852004 = 110262^2 + 99498^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105018.

It is not an unprimeable number, because it can be changed into a prime (22057560643) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 28984588 + ... + 28985348.

Almost surely, 2^22057560648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22057560648

22057560648 is an abundant number, since it is smaller than the sum of its proper divisors (40474122657).

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

22057560648 is an equidigital number, since it uses as much as digits as its factorization.

22057560648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 22057560648 in words is "twenty-two billion, fifty-seven million, five hundred sixty thousand, six hundred forty-eight".