6681316 has 12 divisors (see below), whose sum is σ = 12200832. Its totient is φ = 3195368.

The previous prime is 6681287. The next prime is 6681329. The reversal of 6681316 is 6131866.

6681316 = T₂₁₀₉ + T₂₁₁₀ + T₂₁₁₁.

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, 36220 + ... + 36403.

It is an arithmetic number, because the mean of its divisors is an integer number (1016736).

Almost surely, 2^6681316 is an apocalyptic number.

6681316 is the 2111-st centered triangular number.

It is an amenable number.

6681316 is a deficient number, since it is larger than the sum of its proper divisors (5519516).

6681316 is a wasteful number, since it uses less digits than its factorization.

6681316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72650 (or 72648 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 6681316 is about 2584.8241719699. The cubic root of 6681316 is about 188.3449604294.

The spelling of 6681316 in words is "six million, six hundred eighty-one thousand, three hundred sixteen".