6659354820384 has 216 divisors, whose sum is σ = 22032150154560. Its totient is φ = 1902433865472.

The previous prime is 6659354820347. The next prime is 6659354820409. The reversal of 6659354820384 is 4830284539566.

6659354820384 is a `hidden beast` number, since 6 + 6 + 5 + 9 + 3 + 548 + 2 + 0 + 3 + 84 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 133742757 + ... + 133792539.

It is an arithmetic number, because the mean of its divisors is an integer number (102000695160).

Almost surely, 2^{6659354820384} 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 6659354820384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11016075077280).

6659354820384 is an abundant number, since it is smaller than the sum of its proper divisors (15372795334176).

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

6659354820384 is a wasteful number, since it uses less digits than its factorization.

6659354820384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59292 (or 59274 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 63.

The spelling of 6659354820384 in words is "six trillion, six hundred fifty-nine billion, three hundred fifty-four million, eight hundred twenty thousand, three hundred eighty-four".