665463344 has 40 divisors (see below), whose sum is σ = 1586877600. Its totient is φ = 263259648.

The previous prime is 665463343. The next prime is 665463367. The reversal of 665463344 is 443364566.

It is not an unprimeable number, because it can be changed into a prime (665463341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227069 + ... + 229980.

It is an arithmetic number, because the mean of its divisors is an integer number (39671940).

Almost surely, 2^665463344 is an apocalyptic number.

It is an amenable number.

665463344 is an abundant number, since it is smaller than the sum of its proper divisors (921414256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665463344 is a wasteful number, since it uses less digits than its factorization.

665463344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457077 (or 457071 counting only the distinct ones).

The product of its digits is 622080, while the sum is 41.

The square root of 665463344 is about 25796.5762069310. The cubic root of 665463344 is about 873.0545485987.

The spelling of 665463344 in words is "six hundred sixty-five million, four hundred sixty-three thousand, three hundred forty-four".