11223645567889 has 2 divisors, whose sum is σ = 11223645567890. Its totient is φ = 11223645567888.

The previous prime is 11223645567847. The next prime is 11223645567931. The reversal of 11223645567889 is 98876554632211.

It is a balanced prime because it is at equal distance from previous prime (11223645567847) and next prime (11223645567931).

It can be written as a sum of positive squares in only one way, i.e., 9479748366400 + 1743897201489 = 3078920^2 + 1320567^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223645567889 - 2²³ = 11223637179281 is a prime.

It is not a weakly prime, because it can be changed into another prime (11223645567689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611822783944 + 5611822783945.

It is an arithmetic number, because the mean of its divisors is an integer number (5611822783945).

Almost surely, 2^{11223645567889} is an apocalyptic number.

It is an amenable number.

11223645567889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223645567889 is an equidigital number, since it uses as much as digits as its factorization.

11223645567889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174182400, while the sum is 67.

The spelling of 11223645567889 in words is "eleven trillion, two hundred twenty-three billion, six hundred forty-five million, five hundred sixty-seven thousand, eight hundred eighty-nine".