664342203 has 16 divisors (see below), whose sum is σ = 1018784000. Its totient is φ = 377204256.

The previous prime is 664342171. The next prime is 664342213. The reversal of 664342203 is 302243466.

It is a happy number.

It is not a de Polignac number, because 664342203 - 2⁵ = 664342171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664342213) 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, 97453 + ... + 104046.

It is an arithmetic number, because the mean of its divisors is an integer number (63674000).

Almost surely, 2^664342203 is an apocalyptic number.

664342203 is a deficient number, since it is larger than the sum of its proper divisors (354441797).

664342203 is a wasteful number, since it uses less digits than its factorization.

664342203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201666.

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 664342203 is about 25774.8366241185. The cubic root of 664342203 is about 872.5639794026.

Adding to 664342203 its reverse (302243466), we get a palindrome (966585669).

The spelling of 664342203 in words is "six hundred sixty-four million, three hundred forty-two thousand, two hundred three".