12385883666 has 16 divisors (see below), whose sum is σ = 21061017600. Its totient is φ = 5415689808.

The previous prime is 12385883603. The next prime is 12385883683. The reversal of 12385883666 is 66638858321.

It is a super-2 number, since 2×12385883666² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12535826 + ... + 12536813.

It is an arithmetic number, because the mean of its divisors is an integer number (1316313600).

Almost surely, 2^12385883666 is an apocalyptic number.

12385883666 is a deficient number, since it is larger than the sum of its proper divisors (8675133934).

12385883666 is a wasteful number, since it uses less digits than its factorization.

12385883666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25072673.

The product of its digits is 9953280, while the sum is 56.

The spelling of 12385883666 in words is "twelve billion, three hundred eighty-five million, eight hundred eighty-three thousand, six hundred sixty-six".