6501680671 has 2 divisors, whose sum is σ = 6501680672. Its totient is φ = 6501680670.

The previous prime is 6501680621. The next prime is 6501680693. The reversal of 6501680671 is 1760861056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6501680671 - 2¹⁵ = 6501647903 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6501680621) 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, 3250840335 + 3250840336.

It is an arithmetic number, because the mean of its divisors is an integer number (3250840336).

Almost surely, 2^6501680671 is an apocalyptic number.

6501680671 is a deficient number, since it is larger than the sum of its proper divisors (1).

6501680671 is an equidigital number, since it uses as much as digits as its factorization.

6501680671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 6501680671 is about 80632.9998883832. Note that the first 3 decimals coincide. The cubic root of 6501680671 is about 1866.4164138616.

The spelling of 6501680671 in words is "six billion, five hundred one million, six hundred eighty thousand, six hundred seventy-one".