6668885532 has 12 divisors (see below), whose sum is σ = 15560732936. Its totient is φ = 2222961840.

The previous prime is 6668885527. The next prime is 6668885533. The reversal of 6668885532 is 2355888666.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668885533) 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, 277870219 + ... + 277870242.

Almost surely, 2^6668885532 is an apocalyptic number.

It is an amenable number.

6668885532 is an abundant number, since it is smaller than the sum of its proper divisors (8891847404).

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

6668885532 is a wasteful number, since it uses less digits than its factorization.

6668885532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555740468 (or 555740466 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The square root of 6668885532 is about 81663.2446820477. The cubic root of 6668885532 is about 1882.2808378232.

The spelling of 6668885532 in words is "six billion, six hundred sixty-eight million, eight hundred eighty-five thousand, five hundred thirty-two".