12366560440 has 32 divisors (see below), whose sum is σ = 29965128480. Its totient is φ = 4566114432.

The previous prime is 12366560411. The next prime is 12366560441. The reversal of 12366560440 is 4406566321.

12366560440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12366560440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12366560441) 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 in 7 ways as a sum of consecutive naturals, for example, 11890404 + ... + 11891443.

It is an arithmetic number, because the mean of its divisors is an integer number (936410265).

Almost surely, 2^12366560440 is an apocalyptic number.

12366560440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12366560440 is an abundant number, since it is smaller than the sum of its proper divisors (17598568040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12366560440 is a wasteful number, since it uses less digits than its factorization.

12366560440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23781871 (or 23781867 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 12366560440 in words is "twelve billion, three hundred sixty-six million, five hundred sixty thousand, four hundred forty".