22445740065 has 64 divisors (see below), whose sum is σ = 42198976512. Its totient is φ = 9974361600.

The previous prime is 22445740013. The next prime is 22445740069. The reversal of 22445740065 is 56004754422.

It is not a de Polignac number, because 22445740065 - 2²³ = 22437351457 is a prime.

It is a super-2 number, since 2×22445740065² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22445740069) 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 63 ways as a sum of consecutive naturals, for example, 940885 + ... + 964445.

It is an arithmetic number, because the mean of its divisors is an integer number (659359008).

Almost surely, 2^22445740065 is an apocalyptic number.

It is an amenable number.

22445740065 is a deficient number, since it is larger than the sum of its proper divisors (19753236447).

22445740065 is a wasteful number, since it uses less digits than its factorization.

22445740065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23830.

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 22445740065 in words is "twenty-two billion, four hundred forty-five million, seven hundred forty thousand, sixty-five".