6528161871 has 60 divisors (see below), whose sum is σ = 12250506576. Its totient is φ = 3391217280.

The previous prime is 6528161839. The next prime is 6528161963. The reversal of 6528161871 is 1781618256.

6528161871 is a `hidden beast` number, since 6 + 5 + 28 + 1 + 618 + 7 + 1 = 666.

It is not a de Polignac number, because 6528161871 - 2⁵ = 6528161839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6528161971) 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 in 59 ways as a sum of consecutive naturals, for example, 21031 + ... + 116183.

Almost surely, 2^6528161871 is an apocalyptic number.

6528161871 is a deficient number, since it is larger than the sum of its proper divisors (5722344705).

6528161871 is a wasteful number, since it uses less digits than its factorization.

6528161871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95194 (or 95174 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 6528161871 is about 80797.0412267677. The cubic root of 6528161871 is about 1868.9469388150.

The spelling of 6528161871 in words is "six billion, five hundred twenty-eight million, one hundred sixty-one thousand, eight hundred seventy-one".