6664441287 has 16 divisors (see below), whose sum is σ = 10482931712. Its totient is φ = 3685404960.

The previous prime is 6664441279. The next prime is 6664441297. The reversal of 6664441287 is 7821444666.

It is not a de Polignac number, because 6664441287 - 2³ = 6664441279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664441237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5117968 + ... + 5119269.

It is an arithmetic number, because the mean of its divisors is an integer number (655183232).

Almost surely, 2^6664441287 is an apocalyptic number.

6664441287 is a deficient number, since it is larger than the sum of its proper divisors (3818490425).

6664441287 is a wasteful number, since it uses less digits than its factorization.

6664441287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10237278.

The product of its digits is 1548288, while the sum is 48.

The square root of 6664441287 is about 81636.0293436666. The cubic root of 6664441287 is about 1881.8626182118.

The spelling of 6664441287 in words is "six billion, six hundred sixty-four million, four hundred forty-one thousand, two hundred eighty-seven".