66330576000 has 1280 divisors, whose sum is σ = 276018462720. Its totient is φ = 15676416000.

The previous prime is 66330575981. The next prime is 66330576017. The reversal of 66330576000 is 67503366.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 522287937 + ... + 522288063.

It is an arithmetic number, because the mean of its divisors is an integer number (215639424).

Almost surely, 2^66330576000 is an apocalyptic number.

66330576000 is a gapful number since it is divisible by the number (60) 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 66330576000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138009231360).

66330576000 is an abundant number, since it is smaller than the sum of its proper divisors (209687886720).

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

66330576000 is a wasteful number, since it uses less digits than its factorization.

66330576000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The spelling of 66330576000 in words is "sixty-six billion, three hundred thirty million, five hundred seventy-six thousand".