4203664666 has 16 divisors (see below), whose sum is σ = 6733347840. Its totient is φ = 1963891440.

The previous prime is 4203664561. The next prime is 4203664669. The reversal of 4203664666 is 6664663024.

It is not an unprimeable number, because it can be changed into a prime (4203664669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1167186 + ... + 1170781.

It is an arithmetic number, because the mean of its divisors is an integer number (420834240).

Almost surely, 2^4203664666 is an apocalyptic number.

4203664666 is a deficient number, since it is larger than the sum of its proper divisors (2529683174).

4203664666 is a wasteful number, since it uses less digits than its factorization.

4203664666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338029.

The product of its (nonzero) digits is 746496, while the sum is 43.

The square root of 4203664666 is about 64835.6743313432. The cubic root of 4203664666 is about 1613.8977696955.

The spelling of 4203664666 in words is "four billion, two hundred three million, six hundred sixty-four thousand, six hundred sixty-six".