12486539966 has 32 divisors (see below), whose sum is σ = 20583763200. Its totient is φ = 5654499840.

The previous prime is 12486539963. The next prime is 12486539981. The reversal of 12486539966 is 66993568421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12486539963) 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, 2909150 + ... + 2913438.

It is an arithmetic number, because the mean of its divisors is an integer number (643242600).

Almost surely, 2^12486539966 is an apocalyptic number.

12486539966 is a deficient number, since it is larger than the sum of its proper divisors (8097223234).

12486539966 is a wasteful number, since it uses less digits than its factorization.

12486539966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664.

The product of its digits is 16796160, while the sum is 59.

The spelling of 12486539966 in words is "twelve billion, four hundred eighty-six million, five hundred thirty-nine thousand, nine hundred sixty-six".