6669695836 has 24 divisors (see below), whose sum is σ = 11875507280. Its totient is φ = 3276806400.

The previous prime is 6669695827. The next prime is 6669695843. The reversal of 6669695836 is 6385969666.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232651 + ... + 259741.

Almost surely, 2^6669695836 is an apocalyptic number.

It is an amenable number.

6669695836 is a deficient number, since it is larger than the sum of its proper divisors (5205811444).

6669695836 is a wasteful number, since it uses less digits than its factorization.

6669695836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28165 (or 28163 counting only the distinct ones).

The product of its digits is 75582720, while the sum is 64.

The square root of 6669695836 is about 81668.2057841361. The cubic root of 6669695836 is about 1882.3570703469.

The spelling of 6669695836 in words is "six billion, six hundred sixty-nine million, six hundred ninety-five thousand, eight hundred thirty-six".