66330800 has 60 divisors (see below), whose sum is σ = 160640760. Its totient is φ = 26319360.

The previous prime is 66330791. The next prime is 66330839. The reversal of 66330800 is 803366.

It is a self number, because there is not a number n which added to its sum of digits gives 66330800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55004 + ... + 56196.

It is an arithmetic number, because the mean of its divisors is an integer number (2677346).

Almost surely, 2^66330800 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 66330800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80320380).

66330800 is an abundant number, since it is smaller than the sum of its proper divisors (94309960).

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

66330800 is a wasteful number, since it uses less digits than its factorization.

66330800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 66330800 is about 8144.3722901154. The cubic root of 66330800 is about 404.7980500044.

The spelling of 66330800 in words is "sixty-six million, three hundred thirty thousand, eight hundred".