22646336645 has 8 divisors (see below), whose sum is σ = 28605899040. Its totient is φ = 17163539280.

The previous prime is 22646336639. The next prime is 22646336677. The reversal of 22646336645 is 54663364622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22646336645 - 2²⁰ = 22645288069 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22646336645.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 119191151 + ... + 119191340.

It is an arithmetic number, because the mean of its divisors is an integer number (3575737380).

Almost surely, 2^22646336645 is an apocalyptic number.

It is an amenable number.

22646336645 is a deficient number, since it is larger than the sum of its proper divisors (5959562395).

22646336645 is a wasteful number, since it uses less digits than its factorization.

22646336645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238382515.

The product of its digits is 3732480, while the sum is 47.

The spelling of 22646336645 in words is "twenty-two billion, six hundred forty-six million, three hundred thirty-six thousand, six hundred forty-five".