6609488666 has 8 divisors (see below), whose sum is σ = 10815526944. Its totient is φ = 3004313020.

The previous prime is 6609488659. The next prime is 6609488719. The reversal of 6609488666 is 6668849066.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150215630 + ... + 150215673.

It is an arithmetic number, because the mean of its divisors is an integer number (1351940868).

Almost surely, 2^6609488666 is an apocalyptic number.

6609488666 is a deficient number, since it is larger than the sum of its proper divisors (4206038278).

6609488666 is a wasteful number, since it uses less digits than its factorization.

6609488666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300431316.

The product of its (nonzero) digits is 17915904, while the sum is 59.

The square root of 6609488666 is about 81298.7617740885. The cubic root of 6609488666 is about 1876.6759454181.

The spelling of 6609488666 in words is "six billion, six hundred nine million, four hundred eighty-eight thousand, six hundred sixty-six".