1664093303 has 2 divisors, whose sum is σ = 1664093304. Its totient is φ = 1664093302.

The previous prime is 1664093273. The next prime is 1664093317. The reversal of 1664093303 is 3033904661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1664093303 - 2⁸ = 1664093047 is a prime.

It is a super-3 number, since 3×1664093303³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1664093203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832046651 + 832046652.

It is an arithmetic number, because the mean of its divisors is an integer number (832046652).

Almost surely, 2^1664093303 is an apocalyptic number.

1664093303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1664093303 is an equidigital number, since it uses as much as digits as its factorization.

1664093303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 1664093303 is about 40793.2997316961. The cubic root of 1664093303 is about 1185.0205751678.

Adding to 1664093303 its reverse (3033904661), we get a palindrome (4697997964).

The spelling of 1664093303 in words is "one billion, six hundred sixty-four million, ninety-three thousand, three hundred three".