12366044331616 has 96 divisors (see below), whose sum is σ = 26682908378112. Its totient is φ = 5617452072960.

The previous prime is 12366044331601. The next prime is 12366044331617. The reversal of 12366044331616 is 61613344066321.

It is a super-2 number, since 2×12366044331616² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12366044331617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137476 + ... + 4975036.

It is an arithmetic number, because the mean of its divisors is an integer number (277946962272).

Almost surely, 2^{12366044331616} is an apocalyptic number.

12366044331616 is a gapful number since it is divisible by the number (16) 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 12366044331616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13341454189056).

12366044331616 is an abundant number, since it is smaller than the sum of its proper divisors (14316864046496).

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

12366044331616 is a wasteful number, since it uses less digits than its factorization.

12366044331616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837752 (or 4837744 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 46.

Adding to 12366044331616 its reverse (61613344066321), we get a palindrome (73979388397937).

The spelling of 12366044331616 in words is "twelve trillion, three hundred sixty-six billion, forty-four million, three hundred thirty-one thousand, six hundred sixteen".