6556336556 has 48 divisors (see below), whose sum is σ = 14364252672. Its totient is φ = 2543788800.

The previous prime is 6556336529. The next prime is 6556336573.

It is a happy number.

6556336556 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6556336556² = 85971098071083882272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30065 + ... + 118391.

It is an arithmetic number, because the mean of its divisors is an integer number (299255264).

Almost surely, 2^6556336556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6556336556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7182126336).

6556336556 is an abundant number, since it is smaller than the sum of its proper divisors (7807916116).

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

6556336556 is a wasteful number, since it uses less digits than its factorization.

6556336556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88590 (or 88588 counting only the distinct ones).

The product of its digits is 7290000, while the sum is 50.

The square root of 6556336556 is about 80971.2081915541. The cubic root of 6556336556 is about 1871.6317894613.

The spelling of 6556336556 in words is "six billion, five hundred fifty-six million, three hundred thirty-six thousand, five hundred fifty-six".