6663939241600 has 192 divisors, whose sum is σ = 17121016550880. Its totient is φ = 2560900608000.

The previous prime is 6663939241543. The next prime is 6663939241621. The reversal of 6663939241600 is 61429393666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7996635 + ... + 8790565.

Almost surely, 2^{6663939241600} 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 6663939241600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8560508275440).

6663939241600 is an abundant number, since it is smaller than the sum of its proper divisors (10457077309280).

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

6663939241600 is a wasteful number, since it uses less digits than its factorization.

6663939241600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794059 (or 794042 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 55.

The spelling of 6663939241600 in words is "six trillion, six hundred sixty-three billion, nine hundred thirty-nine million, two hundred forty-one thousand, six hundred".