12366824081 has 4 divisors (see below), whose sum is σ = 12569558964. Its totient is φ = 12164089200.

The previous prime is 12366824053. The next prime is 12366824087. The reversal of 12366824081 is 18042866321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 332734081 + 12034090000 = 18241^2 + 109700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12366824081 is a prime.

It is a super-2 number, since 2×12366824081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12366824087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101367350 + ... + 101367471.

It is an arithmetic number, because the mean of its divisors is an integer number (3142389741).

Almost surely, 2^12366824081 is an apocalyptic number.

It is an amenable number.

12366824081 is a deficient number, since it is larger than the sum of its proper divisors (202734883).

12366824081 is an equidigital number, since it uses as much as digits as its factorization.

12366824081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202734882.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 12366824081 in words is "twelve billion, three hundred sixty-six million, eight hundred twenty-four thousand, eighty-one".