22305045636 has 72 divisors (see below), whose sum is σ = 60290042904. Its totient is φ = 6928358400.

The previous prime is 22305045617. The next prime is 22305045641. The reversal of 22305045636 is 63654050322.

It can be written as a sum of positive squares in 4 ways, for example, as 18263900736 + 4041144900 = 135144^2 + 63570^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22305045636.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 118615 + ... + 242238.

It is an arithmetic number, because the mean of its divisors is an integer number (837361707).

Almost surely, 2^22305045636 is an apocalyptic number.

It is an amenable number.

22305045636 is an abundant number, since it is smaller than the sum of its proper divisors (37984997268).

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

22305045636 is a wasteful number, since it uses less digits than its factorization.

22305045636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360981 (or 360976 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 22305045636 its reverse (63654050322), we get a palindrome (85959095958).

The spelling of 22305045636 in words is "twenty-two billion, three hundred five million, forty-five thousand, six hundred thirty-six".