6505116620 has 24 divisors (see below), whose sum is σ = 13671380688. Its totient is φ = 2600020800.

The previous prime is 6505116619. The next prime is 6505116647. The reversal of 6505116620 is 266115056.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 100151 + ... + 151790.

It is an arithmetic number, because the mean of its divisors is an integer number (569640862).

Almost surely, 2^6505116620 is an apocalyptic number.

It is an amenable number.

6505116620 is an abundant number, since it is smaller than the sum of its proper divisors (7166264068).

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

6505116620 is a wasteful number, since it uses less digits than its factorization.

6505116620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253241 (or 253239 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 6505116620 is about 80654.3031710026. The cubic root of 6505116620 is about 1866.7451382119.

The spelling of 6505116620 in words is "six billion, five hundred five million, one hundred sixteen thousand, six hundred twenty".