22065445663 has 4 divisors (see below), whose sum is σ = 22107798288. Its totient is φ = 22023093040.

The previous prime is 22065445643. The next prime is 22065445691. The reversal of 22065445663 is 36654456022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22065445663 - 2²⁹ = 21528574751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22065445643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21175531 + ... + 21176572.

It is an arithmetic number, because the mean of its divisors is an integer number (5526949572).

Almost surely, 2^22065445663 is an apocalyptic number.

22065445663 is a deficient number, since it is larger than the sum of its proper divisors (42352625).

22065445663 is an equidigital number, since it uses as much as digits as its factorization.

22065445663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42352624.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 22065445663 in words is "twenty-two billion, sixty-five million, four hundred forty-five thousand, six hundred sixty-three".