6601326336 has 324 divisors, whose sum is σ = 21720431096. Its totient is φ = 1998120960.

The previous prime is 6601326323. The next prime is 6601326349. The reversal of 6601326336 is 6336231066.

It is a happy number.

6601326336 is a `hidden beast` number, since 6 + 6 + 0 + 13 + 2 + 633 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (6601326323) and next prime (6601326349).

It is a tau number, because it is divible by the number of its divisors (324).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6601326336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7526730 + ... + 7527606.

Almost surely, 2^6601326336 is an apocalyptic number.

6601326336 is a gapful number since it is divisible by the number (66) 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 6601326336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10860215548).

6601326336 is an abundant number, since it is smaller than the sum of its proper divisors (15119104760).

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

6601326336 is an equidigital number, since it uses as much as digits as its factorization.

6601326336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 6601326336 is about 81248.5466700790. The cubic root of 6601326336 is about 1875.9030990300.

The spelling of 6601326336 in words is "six billion, six hundred one million, three hundred twenty-six thousand, three hundred thirty-six".