65945603 has 2 divisors, whose sum is σ = 65945604. Its totient is φ = 65945602.

The previous prime is 65945573. The next prime is 65945609. The reversal of 65945603 is 30654956.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65945603 - 2¹² = 65941507 is a prime.

It is not a weakly prime, because it can be changed into another prime (65945609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32972801 + 32972802.

It is an arithmetic number, because the mean of its divisors is an integer number (32972802).

Almost surely, 2^65945603 is an apocalyptic number.

65945603 is a deficient number, since it is larger than the sum of its proper divisors (1).

65945603 is an equidigital number, since it uses as much as digits as its factorization.

65945603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 65945603 is about 8120.6898106011. The cubic root of 65945603 is about 404.0129456199.

The spelling of 65945603 in words is "sixty-five million, nine hundred forty-five thousand, six hundred three".