4866638666 has 16 divisors (see below), whose sum is σ = 7414192320. Its totient is φ = 2395293120.

The previous prime is 4866638639. The next prime is 4866638681. The reversal of 4866638666 is 6668366684.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187331 + ... + 211721.

It is an arithmetic number, because the mean of its divisors is an integer number (463387020).

Almost surely, 2^4866638666 is an apocalyptic number.

4866638666 is a deficient number, since it is larger than the sum of its proper divisors (2547553654).

4866638666 is a wasteful number, since it uses less digits than its factorization.

4866638666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25949.

The product of its digits is 35831808, while the sum is 59.

The square root of 4866638666 is about 69761.2977660250. The cubic root of 4866638666 is about 1694.6357632843.

The spelling of 4866638666 in words is "four billion, eight hundred sixty-six million, six hundred thirty-eight thousand, six hundred sixty-six".