6668449832 has 32 divisors (see below), whose sum is σ = 13645588320. Its totient is φ = 3029874240.

The previous prime is 6668449831. The next prime is 6668449883. The reversal of 6668449832 is 2389448666.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6668449831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221423 + ... + 249729.

It is an arithmetic number, because the mean of its divisors is an integer number (426424635).

Almost surely, 2^6668449832 is an apocalyptic number.

It is an amenable number.

6668449832 is an abundant number, since it is smaller than the sum of its proper divisors (6977138488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6668449832 is a wasteful number, since it uses less digits than its factorization.

6668449832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31001 (or 30997 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 56.

The square root of 6668449832 is about 81660.5769756741. The cubic root of 6668449832 is about 1882.2398450857.

It can be divided in two parts, 666844 and 9832, that added together give a palindrome (676676).

The spelling of 6668449832 in words is "six billion, six hundred sixty-eight million, four hundred forty-nine thousand, eight hundred thirty-two".