12346666205 has 16 divisors (see below), whose sum is σ = 15319839744. Its totient is φ = 9542519040.

The previous prime is 12346666181. The next prime is 12346666247. The reversal of 12346666205 is 50266664321.

It is a happy number.

It is not a de Polignac number, because 12346666205 - 2⁶ = 12346666141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 24752 + ... + 159078.

It is an arithmetic number, because the mean of its divisors is an integer number (957489984).

Almost surely, 2^12346666205 is an apocalyptic number.

It is an amenable number.

12346666205 is a deficient number, since it is larger than the sum of its proper divisors (2973173539).

12346666205 is a wasteful number, since it uses less digits than its factorization.

12346666205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134956.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 12346666205 in words is "twelve billion, three hundred forty-six million, six hundred sixty-six thousand, two hundred five".