22217688653 has 2 divisors, whose sum is σ = 22217688654. Its totient is φ = 22217688652.

The previous prime is 22217688629. The next prime is 22217688679. The reversal of 22217688653 is 35688671222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18078953764 + 4138734889 = 134458^2 + 64333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22217688653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22217688683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11108844326 + 11108844327.

It is an arithmetic number, because the mean of its divisors is an integer number (11108844327).

Almost surely, 2^22217688653 is an apocalyptic number.

It is an amenable number.

22217688653 is a deficient number, since it is larger than the sum of its proper divisors (1).

22217688653 is an equidigital number, since it uses as much as digits as its factorization.

22217688653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 50.

The spelling of 22217688653 in words is "twenty-two billion, two hundred seventeen million, six hundred eighty-eight thousand, six hundred fifty-three".