66589338 has 48 divisors (see below), whose sum is σ = 142865856. Its totient is φ = 20684160.

The previous prime is 66589321. The next prime is 66589343. The reversal of 66589338 is 83398566.

66589338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 153570 + ... + 154002.

It is an arithmetic number, because the mean of its divisors is an integer number (2976372).

Almost surely, 2^66589338 is an apocalyptic number.

66589338 is an abundant number, since it is smaller than the sum of its proper divisors (76276518).

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

66589338 is a wasteful number, since it uses less digits than its factorization.

66589338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547 (or 528 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 66589338 is about 8160.2290409032. The cubic root of 66589338 is about 405.3232961924.

The spelling of 66589338 in words is "sixty-six million, five hundred eighty-nine thousand, three hundred thirty-eight".