665350343 has 4 divisors (see below), whose sum is σ = 760400400. Its totient is φ = 570300288.

The previous prime is 665350307. The next prime is 665350381. The reversal of 665350343 is 343053566.

665350343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 665350343 - 2²⁰ = 664301767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665350043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47525018 + ... + 47525031.

It is an arithmetic number, because the mean of its divisors is an integer number (190100100).

Almost surely, 2^665350343 is an apocalyptic number.

665350343 is a deficient number, since it is larger than the sum of its proper divisors (95050057).

665350343 is an equidigital number, since it uses as much as digits as its factorization.

665350343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95050056.

The product of its (nonzero) digits is 97200, while the sum is 35.

The square root of 665350343 is about 25794.3858814278. The cubic root of 665350343 is about 873.0051285855.

The spelling of 665350343 in words is "six hundred sixty-five million, three hundred fifty thousand, three hundred forty-three".