665582233 has 16 divisors (see below), whose sum is σ = 703261440. Its totient is φ = 629078400.

The previous prime is 665582213. The next prime is 665582243. The reversal of 665582233 is 332285566.

It is a cyclic number.

It is not a de Polignac number, because 665582233 - 2⁵ = 665582201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665582213) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 410298 + ... + 411916.

It is an arithmetic number, because the mean of its divisors is an integer number (43953840).

Almost surely, 2^665582233 is an apocalyptic number.

It is an amenable number.

665582233 is a deficient number, since it is larger than the sum of its proper divisors (37679207).

665582233 is a wasteful number, since it uses less digits than its factorization.

665582233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968.

The product of its digits is 259200, while the sum is 40.

The square root of 665582233 is about 25798.8804602060. The cubic root of 665582233 is about 873.1065376388.

It can be divided in two parts, 6655 and 82233, that added together give a palindrome (88888).

The spelling of 665582233 in words is "six hundred sixty-five million, five hundred eighty-two thousand, two hundred thirty-three".