665460896 has 24 divisors (see below), whose sum is σ = 1310720544. Its totient is φ = 332579520.

The previous prime is 665460877. The next prime is 665460949. The reversal of 665460896 is 698064566.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 109391 + ... + 115313.

It is an arithmetic number, because the mean of its divisors is an integer number (54613356).

Almost surely, 2^665460896 is an apocalyptic number.

It is an amenable number.

665460896 is a deficient number, since it is larger than the sum of its proper divisors (645259648).

665460896 is a wasteful number, since it uses less digits than its factorization.

665460896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444 (or 9436 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 665460896 is about 25796.5287587303. The cubic root of 665460896 is about 873.0534780463.

The spelling of 665460896 in words is "six hundred sixty-five million, four hundred sixty thousand, eight hundred ninety-six".