665303044 has 12 divisors (see below), whose sum is σ = 1330606144. Its totient is φ = 285129864.

The previous prime is 665303033. The next prime is 665303047. The reversal of 665303044 is 440303566.

665303044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 665302997 and 665303015.

It is not an unprimeable number, because it can be changed into a prime (665303047) 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, 11880384 + ... + 11880439.

Almost surely, 2^665303044 is an apocalyptic number.

It is an amenable number.

665303044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

665303044 is a wasteful number, since it uses less digits than its factorization.

665303044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23760834 (or 23760832 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 665303044 is about 25793.4690183387. The cubic root of 665303044 is about 872.9844411143.

The spelling of 665303044 in words is "six hundred sixty-five million, three hundred three thousand, forty-four".