22445595585 has 128 divisors (see below), whose sum is σ = 46892482560. Its totient is φ = 9973248768.

The previous prime is 22445595581. The next prime is 22445595607. The reversal of 22445595585 is 58559554422.

It is a happy number.

22445595585 is a `hidden beast` number, since 2 + 2 + 4 + 4 + 5 + 59 + 5 + 585 = 666.

It is not a de Polignac number, because 22445595585 - 2² = 22445595581 is a prime.

It is a super-2 number, since 2×22445595585² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22445595581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9060367 + ... + 9062843.

It is an arithmetic number, because the mean of its divisors is an integer number (366347520).

Almost surely, 2^22445595585 is an apocalyptic number.

It is an amenable number.

22445595585 is an abundant number, since it is smaller than the sum of its proper divisors (24446886975).

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

22445595585 is a wasteful number, since it uses less digits than its factorization.

22445595585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764 (or 2758 counting only the distinct ones).

The product of its digits is 14400000, while the sum is 54.

The spelling of 22445595585 in words is "twenty-two billion, four hundred forty-five million, five hundred ninety-five thousand, five hundred eighty-five".