6448855556 has 48 divisors (see below), whose sum is σ = 13286730240. Its totient is φ = 2700049920.

The previous prime is 6448855537. The next prime is 6448855579. The reversal of 6448855556 is 6555588446.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262220 + ... + 285756.

It is an arithmetic number, because the mean of its divisors is an integer number (276806880).

Almost surely, 2^6448855556 is an apocalyptic number.

It is an amenable number.

6448855556 is an abundant number, since it is smaller than the sum of its proper divisors (6837874684).

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

6448855556 is a wasteful number, since it uses less digits than its factorization.

6448855556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24044 (or 24042 counting only the distinct ones).

The product of its digits is 23040000, while the sum is 56.

The square root of 6448855556 is about 80304.7667078362. The cubic root of 6448855556 is about 1861.3478837495.

The spelling of 6448855556 in words is "six billion, four hundred forty-eight million, eight hundred fifty-five thousand, five hundred fifty-six".