665110117 has 8 divisors (see below), whose sum is σ = 760665600. Its totient is φ = 569689584.

The previous prime is 665110109. The next prime is 665110141. The reversal of 665110117 is 711011566.

665110117 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 665110117 - 2³ = 665110109 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 (665110217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22942 + ... + 43087.

It is an arithmetic number, because the mean of its divisors is an integer number (95083200).

Almost surely, 2^665110117 is an apocalyptic number.

It is an amenable number.

665110117 is a deficient number, since it is larger than the sum of its proper divisors (95555483).

665110117 is a wasteful number, since it uses less digits than its factorization.

665110117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67475.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 665110117 is about 25789.7289051281. The cubic root of 665110117 is about 872.9000492204.

The spelling of 665110117 in words is "six hundred sixty-five million, one hundred ten thousand, one hundred seventeen".