6636663476352 has 1280 divisors, whose sum is σ = 25347695493120. Its totient is φ = 1676659875840.

The previous prime is 6636663476279. The next prime is 6636663476369. The reversal of 6636663476352 is 2536743666366.

It is a super-2 number, since 2×6636663476352² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 6636663476352.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3012556083 + ... + 3012558285.

It is an arithmetic number, because the mean of its divisors is an integer number (19802887104).

Almost surely, 2^{6636663476352} is an apocalyptic number.

6636663476352 is a gapful number since it is divisible by the number (62) 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 6636663476352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12673847746560).

6636663476352 is an abundant number, since it is smaller than the sum of its proper divisors (18711032016768).

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

6636663476352 is a wasteful number, since it uses less digits than its factorization.

6636663476352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2362 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 63.

The spelling of 6636663476352 in words is "six trillion, six hundred thirty-six billion, six hundred sixty-three million, four hundred seventy-six thousand, three hundred fifty-two".