12663442460 has 72 divisors (see below), whose sum is σ = 28608175680. Its totient is φ = 4706896896.

The previous prime is 12663442417. The next prime is 12663442471. The reversal of 12663442460 is 6424436621.

12663442460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 442754 + ... + 470486.

Almost surely, 2^12663442460 is an apocalyptic number.

12663442460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12663442460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14304087840).

12663442460 is an abundant number, since it is smaller than the sum of its proper divisors (15944733220).

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

12663442460 is a wasteful number, since it uses less digits than its factorization.

12663442460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27855 (or 27836 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 12663442460 in words is "twelve billion, six hundred sixty-three million, four hundred forty-two thousand, four hundred sixty".