6666636 has 24 divisors (see below), whose sum is σ = 16092720. Its totient is φ = 2145472.

The previous prime is 6666617. The next prime is 6666679. The reversal of 6666636 is 6366666.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 6666594 and 6666603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9231 + ... + 9926.

It is an arithmetic number, because the mean of its divisors is an integer number (670530).

Almost surely, 2^6666636 is an apocalyptic number.

It is an amenable number.

6666636 is an abundant number, since it is smaller than the sum of its proper divisors (9426084).

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

6666636 is a wasteful number, since it uses less digits than its factorization.

6666636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19193 (or 19191 counting only the distinct ones).

The product of its digits is 139968, while the sum is 39.

The square root of 6666636 is about 2581.9829588903. The cubic root of 6666636 is about 188.2069171914.

The spelling of 6666636 in words is "six million, six hundred sixty-six thousand, six hundred thirty-six".