6635360768 has 40 divisors (see below), whose sum is σ = 13295681388. Its totient is φ = 3308191744.

The previous prime is 6635360737. The next prime is 6635360777. The reversal of 6635360768 is 8670635366.

It can be written as a sum of positive squares in 2 ways, for example, as 6484758784 + 150601984 = 80528^2 + 12272^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162380 + ... + 199092.

Almost surely, 2^6635360768 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 6635360768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6647840694).

6635360768 is an abundant number, since it is smaller than the sum of its proper divisors (6660320620).

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

6635360768 is an equidigital number, since it uses as much as digits as its factorization.

6635360768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37084 (or 37068 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 50.

The square root of 6635360768 is about 81457.7238081202. The cubic root of 6635360768 is about 1879.1214364823.

The spelling of 6635360768 in words is "six billion, six hundred thirty-five million, three hundred sixty thousand, seven hundred sixty-eight".