6664333223 has 4 divisors (see below), whose sum is σ = 6674446680. Its totient is φ = 6654219768.

The previous prime is 6664333219. The next prime is 6664333231. The reversal of 6664333223 is 3223334666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223334666 = 2 ⋅1611667333.

It is a cyclic number.

It is not a de Polignac number, because 6664333223 - 2² = 6664333219 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 (6664333723) 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 3 ways as a sum of consecutive naturals, for example, 5055740 + ... + 5057057.

It is an arithmetic number, because the mean of its divisors is an integer number (1668611670).

Almost surely, 2^6664333223 is an apocalyptic number.

6664333223 is a deficient number, since it is larger than the sum of its proper divisors (10113457).

6664333223 is a wasteful number, since it uses less digits than its factorization.

6664333223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113456.

The product of its digits is 279936, while the sum is 38.

The square root of 6664333223 is about 81635.3674763579. The cubic root of 6664333223 is about 1881.8524466814.

Adding to 6664333223 its reverse (3223334666), we get a palindrome (9887667889).

The spelling of 6664333223 in words is "six billion, six hundred sixty-four million, three hundred thirty-three thousand, two hundred twenty-three".