6800666671 has 2 divisors, whose sum is σ = 6800666672. Its totient is φ = 6800666670.

The previous prime is 6800666651. The next prime is 6800666687. The reversal of 6800666671 is 1766660086.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6800666671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6800666651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400333335 + 3400333336.

It is an arithmetic number, because the mean of its divisors is an integer number (3400333336).

Almost surely, 2^6800666671 is an apocalyptic number.

6800666671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800666671 is an equidigital number, since it uses as much as digits as its factorization.

6800666671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 6800666671 is about 82466.1546999737. The cubic root of 6800666671 is about 1894.5983857077.

The spelling of 6800666671 in words is "six billion, eight hundred million, six hundred sixty-six thousand, six hundred seventy-one".