6660012 has 24 divisors (see below), whose sum is σ = 15902656. Its totient is φ = 2168208.

The previous prime is 6660011. The next prime is 6660023. The reversal of 6660012 is 2100666.

It is not an unprimeable number, because it can be changed into a prime (6660011) 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, 5938 + ... + 6969.

Almost surely, 2^6660012 is an apocalyptic number.

It is an amenable number.

6660012 is an abundant number, since it is smaller than the sum of its proper divisors (9242644).

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

6660012 is a wasteful number, since it uses less digits than its factorization.

6660012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12957 (or 12955 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 6660012 is about 2580.6999050645. The cubic root of 6660012 is about 188.1445621170.

Adding to 6660012 its reverse (2100666), we get a palindrome (8760678).

The spelling of 6660012 in words is "six million, six hundred sixty thousand, twelve".