6646068 has 72 divisors (see below), whose sum is σ = 19752096. Its totient is φ = 1857600.

The previous prime is 6646049. The next prime is 6646153. The reversal of 6646068 is 8606466.

6646068 is a `hidden beast` number, since 6 + 646 + 0 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4503 + ... + 5793.

Almost surely, 2^6646068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6646068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9876048).

6646068 is an abundant number, since it is smaller than the sum of its proper divisors (13106028).

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

6646068 is a wasteful number, since it uses less digits than its factorization.

6646068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 6646068 is about 2577.9968968174. The cubic root of 6646068 is about 188.0131649148.

The spelling of 6646068 in words is "six million, six hundred forty-six thousand, sixty-eight".