665614303 has 2 divisors, whose sum is σ = 665614304. Its totient is φ = 665614302.

The previous prime is 665614259. The next prime is 665614307. The reversal of 665614303 is 303416566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 665614303 - 2⁹ = 665613791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665614307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332807151 + 332807152.

It is an arithmetic number, because the mean of its divisors is an integer number (332807152).

Almost surely, 2^665614303 is an apocalyptic number.

665614303 is a deficient number, since it is larger than the sum of its proper divisors (1).

665614303 is an equidigital number, since it uses as much as digits as its factorization.

665614303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 665614303 is about 25799.5019913176. The cubic root of 665614303 is about 873.1205604876.

The spelling of 665614303 in words is "six hundred sixty-five million, six hundred fourteen thousand, three hundred three".