12036603666 has 16 divisors (see below), whose sum is σ = 24107169600. Its totient is φ = 4006540848.

The previous prime is 12036603617. The next prime is 12036603673. The reversal of 12036603666 is 66630663021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1410486 + ... + 1418993.

It is an arithmetic number, because the mean of its divisors is an integer number (1506698100).

Almost surely, 2^12036603666 is an apocalyptic number.

12036603666 is an abundant number, since it is smaller than the sum of its proper divisors (12070565934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12036603666 is a wasteful number, since it uses less digits than its factorization.

12036603666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830193.

The product of its (nonzero) digits is 139968, while the sum is 39.

The spelling of 12036603666 in words is "twelve billion, thirty-six million, six hundred three thousand, six hundred sixty-six".