22065603645 has 16 divisors (see below), whose sum is σ = 37381728960. Its totient is φ = 11076067584.

The previous prime is 22065603617. The next prime is 22065603647. The reversal of 22065603645 is 54630656022.

It is not a de Polignac number, because 22065603645 - 2²⁰ = 22064555069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22065603647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43265635 + ... + 43266144.

It is an arithmetic number, because the mean of its divisors is an integer number (2336358060).

Almost surely, 2^22065603645 is an apocalyptic number.

It is an amenable number.

22065603645 is a deficient number, since it is larger than the sum of its proper divisors (15316125315).

22065603645 is a wasteful number, since it uses less digits than its factorization.

22065603645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86531804.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 22065603645 in words is "twenty-two billion, sixty-five million, six hundred three thousand, six hundred forty-five".