6643333466 has 48 divisors (see below), whose sum is σ = 12853186272. Its totient is φ = 2545855200.

The previous prime is 6643333453. The next prime is 6643333469.

6643333466 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6643333469) 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 23 ways as a sum of consecutive naturals, for example, 15245 + ... + 116271.

It is an arithmetic number, because the mean of its divisors is an integer number (267774714).

Almost surely, 2^6643333466 is an apocalyptic number.

6643333466 is a deficient number, since it is larger than the sum of its proper divisors (6209852806).

6643333466 is a wasteful number, since it uses less digits than its factorization.

6643333466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101115 (or 101108 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 44.

The square root of 6643333466 is about 81506.6467596355. The cubic root of 6643333466 is about 1879.8737528397.

It can be divided in two parts, 66433 and 33466, that added together give a palindrome (99899).

The spelling of 6643333466 in words is "six billion, six hundred forty-three million, three hundred thirty-three thousand, four hundred sixty-six".