6448066571 has 2 divisors, whose sum is σ = 6448066572. Its totient is φ = 6448066570.

The previous prime is 6448066519. The next prime is 6448066579. The reversal of 6448066571 is 1756608446.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6448066571 is a prime.

It is not a weakly prime, because it can be changed into another prime (6448066579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224033285 + 3224033286.

It is an arithmetic number, because the mean of its divisors is an integer number (3224033286).

Almost surely, 2^6448066571 is an apocalyptic number.

6448066571 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448066571 is an equidigital number, since it uses as much as digits as its factorization.

6448066571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 6448066571 is about 80299.8541156832. The cubic root of 6448066571 is about 1861.2719718071.

The spelling of 6448066571 in words is "six billion, four hundred forty-eight million, sixty-six thousand, five hundred seventy-one".