6636322944 has 96 divisors (see below), whose sum is σ = 19135094940. Its totient is φ = 2207662080.

The previous prime is 6636322943. The next prime is 6636322991. The reversal of 6636322944 is 4492236366.

6636322944 is a `hidden beast` number, since 6 + 6 + 3 + 632 + 2 + 9 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6132769344 + 503553600 = 78312^2 + 22440^2 .

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 6636322944.

It is not an unprimeable number, because it can be changed into a prime (6636322943) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 594664 + ... + 605720.

Almost surely, 2^6636322944 is an apocalyptic number.

6636322944 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 6636322944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9567547470).

6636322944 is an abundant number, since it is smaller than the sum of its proper divisors (12498771996).

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

6636322944 is a wasteful number, since it uses less digits than its factorization.

6636322944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11598 (or 11583 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 45.

The square root of 6636322944 is about 81463.6295778674. The cubic root of 6636322944 is about 1879.2122608914.

The spelling of 6636322944 in words is "six billion, six hundred thirty-six million, three hundred twenty-two thousand, nine hundred forty-four".