6668894052 has 48 divisors (see below), whose sum is σ = 17573180800. Its totient is φ = 2186520480.

The previous prime is 6668894051. The next prime is 6668894069. The reversal of 6668894052 is 2504988666.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6668894052.

It is not an unprimeable number, because it can be changed into a prime (6668894051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499552 + ... + 512727.

Almost surely, 2^6668894052 is an apocalyptic number.

It is an amenable number.

6668894052 is an abundant number, since it is smaller than the sum of its proper divisors (10904286748).

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

6668894052 is a wasteful number, since it uses less digits than its factorization.

6668894052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012353 (or 1012345 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 6668894052 is about 81663.2968474822. The cubic root of 6668894052 is about 1882.2816394077.

The spelling of 6668894052 in words is "six billion, six hundred sixty-eight million, eight hundred ninety-four thousand, fifty-two".