22266540389 has 2 divisors, whose sum is σ = 22266540390. Its totient is φ = 22266540388.

The previous prime is 22266540353. The next prime is 22266540427. The reversal of 22266540389 is 98304566222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12902688100 + 9363852289 = 113590^2 + 96767^2 .

It is a cyclic number.

It is not a de Polignac number, because 22266540389 - 2⁸ = 22266540133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22266546389) 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, 11133270194 + 11133270195.

It is an arithmetic number, because the mean of its divisors is an integer number (11133270195).

Almost surely, 2^22266540389 is an apocalyptic number.

It is an amenable number.

22266540389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22266540389 is an equidigital number, since it uses as much as digits as its factorization.

22266540389 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 47.

The spelling of 22266540389 in words is "twenty-two billion, two hundred sixty-six million, five hundred forty thousand, three hundred eighty-nine".