66830244 has 96 divisors (see below), whose sum is σ = 175271040. Its totient is φ = 19688448.

The previous prime is 66830237. The next prime is 66830261. The reversal of 66830244 is 44203866.

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 31 ways as a sum of consecutive naturals, for example, 487744 + ... + 487880.

It is an arithmetic number, because the mean of its divisors is an integer number (1825740).

Almost surely, 2^66830244 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 66830244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87635520).

66830244 is an abundant number, since it is smaller than the sum of its proper divisors (108440796).

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

66830244 is a wasteful number, since it uses less digits than its factorization.

66830244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 66830244 is about 8174.9766972145. The cubic root of 66830244 is about 405.8114989605.

The spelling of 66830244 in words is "sixty-six million, eight hundred thirty thousand, two hundred forty-four".