665095975 has 12 divisors (see below), whose sum is σ = 826611280. Its totient is φ = 530856000.

The previous prime is 665095933. The next prime is 665095997. The reversal of 665095975 is 579590566.

It is not a de Polignac number, because 665095975 - 2¹⁷ = 664964903 is a prime.

It is a super-2 number, since 2×665095975² = 884705311922401250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19326 + ... + 41275.

Almost surely, 2^665095975 is an apocalyptic number.

665095975 is a deficient number, since it is larger than the sum of its proper divisors (161515305).

665095975 is a wasteful number, since it uses less digits than its factorization.

665095975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61050 (or 61045 counting only the distinct ones).

The product of its (nonzero) digits is 2551500, while the sum is 52.

The square root of 665095975 is about 25789.4547247514. The cubic root of 665095975 is about 872.8938624553.

The spelling of 665095975 in words is "six hundred sixty-five million, ninety-five thousand, nine hundred seventy-five".