66328383 has 16 divisors (see below), whose sum is σ = 99086976. Its totient is φ = 39111840.

The previous prime is 66328363. The next prime is 66328391. The reversal of 66328383 is 38382366.

It is not a de Polignac number, because 66328383 - 2⁵ = 66328351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66328363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25941 + ... + 28382.

It is an arithmetic number, because the mean of its divisors is an integer number (6192936).

Almost surely, 2^66328383 is an apocalyptic number.

66328383 is a deficient number, since it is larger than the sum of its proper divisors (32758593).

66328383 is a wasteful number, since it uses less digits than its factorization.

66328383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54374.

The product of its digits is 124416, while the sum is 39.

The square root of 66328383 is about 8144.2239040930. The cubic root of 66328383 is about 404.7931331896.

It can be divided in two parts, 663283 and 83, that added together give a palindrome (663366).

The spelling of 66328383 in words is "sixty-six million, three hundred twenty-eight thousand, three hundred eighty-three".