664413103 has 4 divisors (see below), whose sum is σ = 678549600. Its totient is φ = 650276608.

The previous prime is 664413089. The next prime is 664413131. The reversal of 664413103 is 301314466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664413103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664413163) 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 3 ways as a sum of consecutive naturals, for example, 7068178 + ... + 7068271.

It is an arithmetic number, because the mean of its divisors is an integer number (169637400).

Almost surely, 2^664413103 is an apocalyptic number.

664413103 is a deficient number, since it is larger than the sum of its proper divisors (14136497).

664413103 is a wasteful number, since it uses less digits than its factorization.

664413103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14136496.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 664413103 is about 25776.2119598672. The cubic root of 664413103 is about 872.5950189207.

Adding to 664413103 its reverse (301314466), we get a palindrome (965727569).

The spelling of 664413103 in words is "six hundred sixty-four million, four hundred thirteen thousand, one hundred three".