6680081 has 2 divisors, whose sum is σ = 6680082. Its totient is φ = 6680080.

The previous prime is 6680059. The next prime is 6680087. The reversal of 6680081 is 1800866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6677056 + 3025 = 2584^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 6680081 - 2¹⁸ = 6417937 is a prime.

It is a super-2 number, since 2×6680081² = 89246964333122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6680087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340040 + 3340041.

It is an arithmetic number, because the mean of its divisors is an integer number (3340041).

Almost surely, 2^6680081 is an apocalyptic number.

It is an amenable number.

6680081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6680081 is an equidigital number, since it uses as much as digits as its factorization.

6680081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 6680081 is about 2584.5852665370. The cubic root of 6680081 is about 188.3333549134. Note that the first 4 decimals are identical.

The spelling of 6680081 in words is "six million, six hundred eighty thousand, eighty-one".