4439609666 has 8 divisors (see below), whose sum is σ = 6660299520. Its totient is φ = 2219509828.

The previous prime is 4439609651. The next prime is 4439609693. The reversal of 4439609666 is 6669069344.

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

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, 128186 + ... + 159093.

It is an arithmetic number, because the mean of its divisors is an integer number (832537440).

Almost surely, 2^4439609666 is an apocalyptic number.

4439609666 is a deficient number, since it is larger than the sum of its proper divisors (2220689854).

4439609666 is a wasteful number, since it uses less digits than its factorization.

4439609666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295008.

The product of its (nonzero) digits is 5038848, while the sum is 53.

The square root of 4439609666 is about 66630.3959616030. The cubic root of 4439609666 is about 1643.5449871278.

The spelling of 4439609666 in words is "four billion, four hundred thirty-nine million, six hundred nine thousand, six hundred sixty-six".