6664004667 has 12 divisors (see below), whose sum is σ = 9668952384. Its totient is φ = 4422746160.

The previous prime is 6664004647. The next prime is 6664004689. The reversal of 6664004667 is 7664004666.

It is not a de Polignac number, because 6664004667 - 2¹⁹ = 6663480379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6664004617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1658184 + ... + 1662197.

It is an arithmetic number, because the mean of its divisors is an integer number (805746032).

Almost surely, 2^6664004667 is an apocalyptic number.

6664004667 is a deficient number, since it is larger than the sum of its proper divisors (3004947717).

6664004667 is a wasteful number, since it uses less digits than its factorization.

6664004667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320610 (or 3320607 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 6664004667 is about 81633.3551129684. The cubic root of 6664004667 is about 1881.8215206531.

Subtracting 6664004667 from its reverse (7664004666), we obtain a palindrome (999999999).

The spelling of 6664004667 in words is "six billion, six hundred sixty-four million, four thousand, six hundred sixty-seven".