4509705666 has 8 divisors (see below), whose sum is σ = 9019411344. Its totient is φ = 1503235220.

The previous prime is 4509705659. The next prime is 4509705677. The reversal of 4509705666 is 6665079054.

It is a sphenic number, since it is the product of 3 distinct primes.

4509705666 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375808800 + ... + 375808811.

It is an arithmetic number, because the mean of its divisors is an integer number (1127426418).

Almost surely, 2^4509705666 is an apocalyptic number.

4509705666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4509705666 is a wasteful number, since it uses less digits than its factorization.

4509705666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751617616.

The product of its (nonzero) digits is 1360800, while the sum is 48.

The square root of 4509705666 is about 67154.3421232015. The cubic root of 4509705666 is about 1652.1497129843.

The spelling of 4509705666 in words is "four billion, five hundred nine million, seven hundred five thousand, six hundred sixty-six".