6559559556 has 36 divisors (see below), whose sum is σ = 16823557296. Its totient is φ = 1987744880.

The previous prime is 6559559527. The next prime is 6559559557.

6559559556 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6559559556.

It is not an unprimeable number, because it can be changed into a prime (6559559557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2257350 + ... + 2260253.

It is an arithmetic number, because the mean of its divisors is an integer number (467321036).

Almost surely, 2^6559559556 is an apocalyptic number.

6559559556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6559559556 is an abundant number, since it is smaller than the sum of its proper divisors (10263997740).

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

6559559556 is a wasteful number, since it uses less digits than its factorization.

6559559556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517632 (or 4517619 counting only the distinct ones).

The product of its digits is 45562500, while the sum is 60.

The square root of 6559559556 is about 80991.1078822854. The cubic root of 6559559556 is about 1871.9384282382.

The spelling of 6559559556 in words is "six billion, five hundred fifty-nine million, five hundred fifty-nine thousand, five hundred fifty-six".