12684366199 has 16 divisors (see below), whose sum is σ = 13440470400. Its totient is φ = 11937258144.

The previous prime is 12684366181. The next prime is 12684366203. The reversal of 12684366199 is 99166348621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12684366199 - 2¹⁷ = 12684235127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684366119) 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, 6382684 + ... + 6384670.

It is an arithmetic number, because the mean of its divisors is an integer number (840029400).

Almost surely, 2^12684366199 is an apocalyptic number.

12684366199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12684366199 is a deficient number, since it is larger than the sum of its proper divisors (756104201).

12684366199 is a wasteful number, since it uses less digits than its factorization.

12684366199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062.

The product of its digits is 3359232, while the sum is 55.

The spelling of 12684366199 in words is "twelve billion, six hundred eighty-four million, three hundred sixty-six thousand, one hundred ninety-nine".