12668333999 has 4 divisors (see below), whose sum is σ = 13335088440. Its totient is φ = 12001579560.

The previous prime is 12668333963. The next prime is 12668334001. The reversal of 12668333999 is 99933386621.

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

It is a cyclic number.

It is not a de Polignac number, because 12668333999 - 2¹² = 12668329903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668333939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333377192 + ... + 333377229.

It is an arithmetic number, because the mean of its divisors is an integer number (3333772110).

Almost surely, 2^12668333999 is an apocalyptic number.

12668333999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12668333999 is a deficient number, since it is larger than the sum of its proper divisors (666754441).

12668333999 is an equidigital number, since it uses as much as digits as its factorization.

12668333999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666754440.

The product of its digits is 11337408, while the sum is 59.

The spelling of 12668333999 in words is "twelve billion, six hundred sixty-eight million, three hundred thirty-three thousand, nine hundred ninety-nine".