1664530003 has 2 divisors, whose sum is σ = 1664530004. Its totient is φ = 1664530002.

The previous prime is 1664530001. The next prime is 1664530069. The reversal of 1664530003 is 3000354661.

It is a weak prime.

It is an emirp because it is prime and its reverse (3000354661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1664530003 - 2¹ = 1664530001 is a prime.

Together with 1664530001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1664530001) 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 as a sum of consecutive naturals, namely, 832265001 + 832265002.

It is an arithmetic number, because the mean of its divisors is an integer number (832265002).

Almost surely, 2^1664530003 is an apocalyptic number.

1664530003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1664530003 is an equidigital number, since it uses as much as digits as its factorization.

1664530003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1664530003 is about 40798.6519752798. The cubic root of 1664530003 is about 1185.1242258511.

Adding to 1664530003 its reverse (3000354661), we get a palindrome (4664884664).

The spelling of 1664530003 in words is "one billion, six hundred sixty-four million, five hundred thirty thousand, three".