6648336384 has 156 divisors (see below), whose sum is σ = 18349543728. Its totient is φ = 2140815360.

The previous prime is 6648336349. The next prime is 6648336389. The reversal of 6648336384 is 4836338466.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6648336389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11808487 + ... + 11809049.

Almost surely, 2^6648336384 is an apocalyptic number.

6648336384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6648336384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9174771864).

6648336384 is an abundant number, since it is smaller than the sum of its proper divisors (11701207344).

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

6648336384 is an equidigital number, since it uses as much as digits as its factorization.

6648336384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 599 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 51.

The square root of 6648336384 is about 81537.3312293210. The cubic root of 6648336384 is about 1880.3455287648.

The spelling of 6648336384 in words is "six billion, six hundred forty-eight million, three hundred thirty-six thousand, three hundred eighty-four".