665334955 has 8 divisors (see below), whose sum is σ = 799444800. Its totient is φ = 531572736.

The previous prime is 665334949. The next prime is 665334977. The reversal of 665334955 is 559433566.

It is a happy number.

665334955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 665334955 - 2³ = 665334947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82675 + ... + 90364.

It is an arithmetic number, because the mean of its divisors is an integer number (99930600).

Almost surely, 2^665334955 is an apocalyptic number.

665334955 is a deficient number, since it is larger than the sum of its proper divisors (134109845).

665334955 is a wasteful number, since it uses less digits than its factorization.

665334955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173813.

The product of its digits is 1458000, while the sum is 46.

The square root of 665334955 is about 25794.0875977422. The cubic root of 665334955 is about 872.9983983434.

The spelling of 665334955 in words is "six hundred sixty-five million, three hundred thirty-four thousand, nine hundred fifty-five".