664095275 has 6 divisors (see below), whose sum is σ = 823478172. Its totient is φ = 531276200.

The previous prime is 664095241. The next prime is 664095287. The reversal of 664095275 is 572590466.

664095275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 664095275 - 2²⁴ = 647318059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13281881 + ... + 13281930.

It is an arithmetic number, because the mean of its divisors is an integer number (137246362).

Almost surely, 2^664095275 is an apocalyptic number.

664095275 is a deficient number, since it is larger than the sum of its proper divisors (159382897).

664095275 is a wasteful number, since it uses less digits than its factorization.

664095275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26563821 (or 26563816 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 664095275 is about 25770.0460806728. The cubic root of 664095275 is about 872.4558588299.

The spelling of 664095275 in words is "six hundred sixty-four million, ninety-five thousand, two hundred seventy-five".