6666680120 has 16 divisors (see below), whose sum is σ = 15000030360. Its totient is φ = 2666672032.

The previous prime is 6666680099. The next prime is 6666680123. The reversal of 6666680120 is 210866666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666680123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 83333462 + ... + 83333541.

Almost surely, 2^6666680120 is an apocalyptic number.

It is an amenable number.

6666680120 is an abundant number, since it is smaller than the sum of its proper divisors (8333350240).

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

6666680120 is a wasteful number, since it uses less digits than its factorization.

6666680120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166667014 (or 166667010 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 6666680120 is about 81649.7404772361. The cubic root of 6666680120 is about 1882.0733237683.

The spelling of 6666680120 in words is "six billion, six hundred sixty-six million, six hundred eighty thousand, one hundred twenty".