12666206303 has 8 divisors (see below), whose sum is σ = 14117134320. Its totient is φ = 11293706880.

The previous prime is 12666206299. The next prime is 12666206323. The reversal of 12666206303 is 30360266621.

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 12666206303 - 2² = 12666206299 is a prime.

It is a super-2 number, since 2×12666206303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666206323) 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 7 ways as a sum of consecutive naturals, for example, 19606808 + ... + 19607453.

It is an arithmetic number, because the mean of its divisors is an integer number (1764641790).

Almost surely, 2^12666206303 is an apocalyptic number.

12666206303 is a deficient number, since it is larger than the sum of its proper divisors (1450928017).

12666206303 is a wasteful number, since it uses less digits than its factorization.

12666206303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39214297.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 12666206303 in words is "twelve billion, six hundred sixty-six million, two hundred six thousand, three hundred three".