66983232 has 56 divisors (see below), whose sum is σ = 178308000. Its totient is φ = 22191616.

The previous prime is 66983197. The next prime is 66983233. The reversal of 66983232 is 23238966.

66983232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66983233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33394 + ... + 35342.

Almost surely, 2^66983232 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 66983232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89154000).

66983232 is an abundant number, since it is smaller than the sum of its proper divisors (111324768).

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

66983232 is a wasteful number, since it uses less digits than its factorization.

66983232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143 (or 2133 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 66983232 is about 8184.3284391574. The cubic root of 66983232 is about 406.1209246113.

The spelling of 66983232 in words is "sixty-six million, nine hundred eighty-three thousand, two hundred thirty-two".