6691000567 has 2 divisors, whose sum is σ = 6691000568. Its totient is φ = 6691000566.

The previous prime is 6691000543. The next prime is 6691000571. The reversal of 6691000567 is 7650001966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6691000567 - 2¹¹ = 6690998519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6691000517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345500283 + 3345500284.

It is an arithmetic number, because the mean of its divisors is an integer number (3345500284).

Almost surely, 2^6691000567 is an apocalyptic number.

6691000567 is a deficient number, since it is larger than the sum of its proper divisors (1).

6691000567 is an equidigital number, since it uses as much as digits as its factorization.

6691000567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 6691000567 is about 81798.5364600125. The cubic root of 6691000567 is about 1884.3591849725.

The spelling of 6691000567 in words is "six billion, six hundred ninety-one million, five hundred sixty-seven", and thus it is an aban number.