12824403665 has 8 divisors (see below), whose sum is σ = 15391717440. Its totient is φ = 10257900912.

The previous prime is 12824403637. The next prime is 12824403667. The reversal of 12824403665 is 56630442821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12824403665 - 2⁶ = 12824403601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12824403667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167405 + ... + 231674.

It is an arithmetic number, because the mean of its divisors is an integer number (1923964680).

Almost surely, 2^12824403665 is an apocalyptic number.

It is an amenable number.

12824403665 is a deficient number, since it is larger than the sum of its proper divisors (2567313775).

12824403665 is an equidigital number, since it uses as much as digits as its factorization.

12824403665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405511.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 12824403665 in words is "twelve billion, eight hundred twenty-four million, four hundred three thousand, six hundred sixty-five".