6636006 has 80 divisors (see below), whose sum is σ = 16831584. Its totient is φ = 1938816.

The previous prime is 6635963. The next prime is 6636011. The reversal of 6636006 is 6006366.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 39 ways as a sum of consecutive naturals, for example, 48370 + ... + 48506.

Almost surely, 2^6636006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6636006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8415792).

6636006 is an abundant number, since it is smaller than the sum of its proper divisors (10195578).

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

6636006 is a wasteful number, since it uses less digits than its factorization.

6636006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 6636006 is about 2576.0446424703. The cubic root of 6636006 is about 187.9182343996.

The spelling of 6636006 in words is "six million, six hundred thirty-six thousand, six".