3636666668 has 24 divisors (see below), whose sum is σ = 6572267520. Its totient is φ = 1758926160.

The previous prime is 3636666653. The next prime is 3636666679. The reversal of 3636666668 is 8666666363.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382055 + ... + 391457.

It is an arithmetic number, because the mean of its divisors is an integer number (273844480).

Almost surely, 2^3636666668 is an apocalyptic number.

It is an amenable number.

3636666668 is a deficient number, since it is larger than the sum of its proper divisors (2935600852).

3636666668 is a wasteful number, since it uses less digits than its factorization.

3636666668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557 (or 12555 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 56.

The square root of 3636666668 is about 60304.7814688023. The cubic root of 3636666668 is about 1537.8046342676.

The spelling of 3636666668 in words is "three billion, six hundred thirty-six million, six hundred sixty-six thousand, six hundred sixty-eight".