22149561653 has 2 divisors, whose sum is σ = 22149561654. Its totient is φ = 22149561652.

The previous prime is 22149561611. The next prime is 22149561661. The reversal of 22149561653 is 35616594122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20742336484 + 1407225169 = 144022^2 + 37513^2 .

It is a cyclic number.

It is not a de Polignac number, because 22149561653 - 2⁶ = 22149561589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22149561673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11074780826 + 11074780827.

It is an arithmetic number, because the mean of its divisors is an integer number (11074780827).

Almost surely, 2^22149561653 is an apocalyptic number.

It is an amenable number.

22149561653 is a deficient number, since it is larger than the sum of its proper divisors (1).

22149561653 is an equidigital number, since it uses as much as digits as its factorization.

22149561653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The spelling of 22149561653 in words is "twenty-two billion, one hundred forty-nine million, five hundred sixty-one thousand, six hundred fifty-three".