665346359 has 2 divisors, whose sum is σ = 665346360. Its totient is φ = 665346358.

The previous prime is 665346347. The next prime is 665346403. The reversal of 665346359 is 953643566.

665346359 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 665346359 - 2⁸ = 665346103 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (665346329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332673179 + 332673180.

It is an arithmetic number, because the mean of its divisors is an integer number (332673180).

Almost surely, 2^665346359 is an apocalyptic number.

665346359 is a deficient number, since it is larger than the sum of its proper divisors (1).

665346359 is an equidigital number, since it uses as much as digits as its factorization.

665346359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1749600, while the sum is 47.

The square root of 665346359 is about 25794.3086552053. The cubic root of 665346359 is about 873.0033861153.

The spelling of 665346359 in words is "six hundred sixty-five million, three hundred forty-six thousand, three hundred fifty-nine".