6699464649966 has 48 divisors (see below), whose sum is σ = 14733530658000. Its totient is φ = 2029343796480.

The previous prime is 6699464649937. The next prime is 6699464649979.

6699464649966 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6699464649966² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40470 + ... + 3660678.

It is an arithmetic number, because the mean of its divisors is an integer number (306948555375).

Almost surely, 2^{6699464649966} is an apocalyptic number.

6699464649966 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6699464649966 is an abundant number, since it is smaller than the sum of its proper divisors (8034066008034).

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

6699464649966 is a wasteful number, since it uses less digits than its factorization.

6699464649966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3622785 (or 3622774 counting only the distinct ones).

The product of its digits is 19591041024, while the sum is 84.

The spelling of 6699464649966 in words is "six trillion, six hundred ninety-nine billion, four hundred sixty-four million, six hundred forty-nine thousand, nine hundred sixty-six".