12485666 has 4 divisors (see below), whose sum is σ = 18728502. Its totient is φ = 6242832.

The previous prime is 12485659. The next prime is 12485699. The reversal of 12485666 is 66658421.

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

It can be written as a sum of positive squares in only one way, i.e., 10426441 + 2059225 = 3229^2 + 1435^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3121415 + ... + 3121418.

Almost surely, 2^12485666 is an apocalyptic number.

12485666 is a deficient number, since it is larger than the sum of its proper divisors (6242836).

12485666 is an equidigital number, since it uses as much as digits as its factorization.

12485666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242835.

The product of its digits is 69120, while the sum is 38.

The square root of 12485666 is about 3533.5061907403. The cubic root of 12485666 is about 231.9906977047.

The spelling of 12485666 in words is "twelve million, four hundred eighty-five thousand, six hundred sixty-six".