6580220856 has 64 divisors (see below), whose sum is σ = 18363438720. Its totient is φ = 1947630720.

The previous prime is 6580220851. The next prime is 6580220873.

6580220856 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6580220851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278475 + ... + 301178.

It is an arithmetic number, because the mean of its divisors is an integer number (286928730).

Almost surely, 2^6580220856 is an apocalyptic number.

6580220856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6580220856 is an abundant number, since it is smaller than the sum of its proper divisors (11783217864).

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

6580220856 is a wasteful number, since it uses less digits than its factorization.

6580220856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579716 (or 579712 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 6580220856 is about 81118.5604901862. The cubic root of 6580220856 is about 1873.9017787799.

The spelling of 6580220856 in words is "six billion, five hundred eighty million, two hundred twenty thousand, eight hundred fifty-six".