6516680 has 16 divisors (see below), whose sum is σ = 14662620. Its totient is φ = 2606656.

The previous prime is 6516673. The next prime is 6516701. The reversal of 6516680 is 866156.

It can be written as a sum of positive squares in 2 ways, for example, as 6240004 + 276676 = 2498^2 + 526^2 .

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 3 ways as a sum of consecutive naturals, for example, 81419 + ... + 81498.

Almost surely, 2^6516680 is an apocalyptic number.

It is an amenable number.

6516680 is an abundant number, since it is smaller than the sum of its proper divisors (8145940).

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

6516680 is a wasteful number, since it uses less digits than its factorization.

6516680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162928 (or 162924 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6516680 is about 2552.7788780073. The cubic root of 6516680 is about 186.7850581155.

The spelling of 6516680 in words is "six million, five hundred sixteen thousand, six hundred eighty".