22356608809 has 2 divisors, whose sum is σ = 22356608810. Its totient is φ = 22356608808.

The previous prime is 22356608717. The next prime is 22356608819. The reversal of 22356608809 is 90880665322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14065960000 + 8290648809 = 118600^2 + 91053^2 .

It is a cyclic number.

It is not a de Polignac number, because 22356608809 - 2¹⁹ = 22356084521 is a prime.

It is not a weakly prime, because it can be changed into another prime (22356608819) 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 as a sum of consecutive naturals, namely, 11178304404 + 11178304405.

It is an arithmetic number, because the mean of its divisors is an integer number (11178304405).

Almost surely, 2^22356608809 is an apocalyptic number.

It is an amenable number.

22356608809 is a deficient number, since it is larger than the sum of its proper divisors (1).

22356608809 is an equidigital number, since it uses as much as digits as its factorization.

22356608809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 22356608809 in words is "twenty-two billion, three hundred fifty-six million, six hundred eight thousand, eight hundred nine".