22446645313 has 4 divisors (see below), whose sum is σ = 22668889428. Its totient is φ = 22224401200.

The previous prime is 22446645289. The next prime is 22446645341. The reversal of 22446645313 is 31354664422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21283016769 + 1163628544 = 145887^2 + 34112^2 .

It is a cyclic number.

It is not a de Polignac number, because 22446645313 - 2¹⁷ = 22446514241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22447645313) 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, 111121906 + ... + 111122107.

It is an arithmetic number, because the mean of its divisors is an integer number (5667222357).

Almost surely, 2^22446645313 is an apocalyptic number.

It is an amenable number.

22446645313 is a deficient number, since it is larger than the sum of its proper divisors (222244115).

22446645313 is a wasteful number, since it uses less digits than its factorization.

22446645313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222244114.

The product of its digits is 414720, while the sum is 40.

The spelling of 22446645313 in words is "twenty-two billion, four hundred forty-six million, six hundred forty-five thousand, three hundred thirteen".