12244555666789 has 4 divisors (see below), whose sum is σ = 12245536892160. Its totient is φ = 12243574441420.

The previous prime is 12244555666781. The next prime is 12244555666813. The reversal of 12244555666789 is 98766655544221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12244555666789 - 2³ = 12244555666781 is a prime.

It is a super-2 number, since 2×12244555666789² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12244555666781) 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 in 3 ways as a sum of consecutive naturals, for example, 490593967 + ... + 490618924.

It is an arithmetic number, because the mean of its divisors is an integer number (3061384223040).

Almost surely, 2^{12244555666789} is an apocalyptic number.

It is an amenable number.

12244555666789 is a deficient number, since it is larger than the sum of its proper divisors (981225371).

12244555666789 is an equidigital number, since it uses as much as digits as its factorization.

12244555666789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981225370.

The product of its digits is 870912000, while the sum is 70.

The spelling of 12244555666789 in words is "twelve trillion, two hundred forty-four billion, five hundred fifty-five million, six hundred sixty-six thousand, seven hundred eighty-nine".