6500216680 has 16 divisors (see below), whose sum is σ = 14625487620. Its totient is φ = 2600086656.

The previous prime is 6500216609. The next prime is 6500216683. The reversal of 6500216680 is 866120056.

It can be written as a sum of positive squares in 2 ways, for example, as 6330748356 + 169468324 = 79566^2 + 13018^2 .

It is not an unprimeable number, because it can be changed into a prime (6500216683) 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 3 ways as a sum of consecutive naturals, for example, 81252669 + ... + 81252748.

Almost surely, 2^6500216680 is an apocalyptic number.

It is an amenable number.

6500216680 is an abundant number, since it is smaller than the sum of its proper divisors (8125270940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6500216680 is a wasteful number, since it uses less digits than its factorization.

6500216680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162505428 (or 162505424 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 6500216680 is about 80623.9212641013. The cubic root of 6500216680 is about 1866.2763156274.

The spelling of 6500216680 in words is "six billion, five hundred million, two hundred sixteen thousand, six hundred eighty".