11223445567889 has 8 divisors (see below), whose sum is σ = 11407612979880. Its totient is φ = 11039283849600.

The previous prime is 11223445567787. The next prime is 11223445567921. The reversal of 11223445567889 is 98876554432211.

11223445567889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 294867462289 + 10928578105600 = 543017^2 + 3305840^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223445567889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11223645567889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2645999 + ... + 5426619.

It is an arithmetic number, because the mean of its divisors is an integer number (1425951622485).

Almost surely, 2^{11223445567889} is an apocalyptic number.

It is an amenable number.

11223445567889 is a deficient number, since it is larger than the sum of its proper divisors (184167411991).

11223445567889 is an equidigital number, since it uses as much as digits as its factorization.

11223445567889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846851.

The product of its digits is 116121600, while the sum is 65.

The spelling of 11223445567889 in words is "eleven trillion, two hundred twenty-three billion, four hundred forty-five million, five hundred sixty-seven thousand, eight hundred eighty-nine".