6661330030000 has 200 divisors, whose sum is σ = 16189418065392. Its totient is φ = 2654365824000.

The previous prime is 6661330029971. The next prime is 6661330030039. The reversal of 6661330030000 is 300331666.

It is a tau number, because it is divible by the number of its divisors (200).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5216389362 + ... + 5216390638.

Almost surely, 2^{6661330030000} 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 6661330030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8094709032696).

6661330030000 is an abundant number, since it is smaller than the sum of its proper divisors (9528088035392).

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

6661330030000 is a wasteful number, since it uses less digits than its factorization.

6661330030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 6661330030000 its reverse (300331666), we get a palindrome (6661630361666).

The spelling of 6661330030000 in words is "six trillion, six hundred sixty-one billion, three hundred thirty million, thirty thousand".