6680651 has 2 divisors, whose sum is σ = 6680652. Its totient is φ = 6680650.

The previous prime is 6680621. The next prime is 6680657. The reversal of 6680651 is 1560866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6680651 - 2¹⁸ = 6418507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6680657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340325 + 3340326.

It is an arithmetic number, because the mean of its divisors is an integer number (3340326).

Almost surely, 2^6680651 is an apocalyptic number.

6680651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6680651 is an equidigital number, since it uses as much as digits as its factorization.

6680651 is an evil number, because the sum of its binary digits is even.

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

The square root of 6680651 is about 2584.6955333269. The cubic root of 6680651 is about 188.3387114831.

The spelling of 6680651 in words is "six million, six hundred eighty thousand, six hundred fifty-one".