165500575 has 12 divisors (see below), whose sum is σ = 205970200. Its totient is φ = 131916960.

The previous prime is 165500567. The next prime is 165500603. The reversal of 165500575 is 575005561.

It is not a de Polignac number, because 165500575 - 2³ = 165500567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165500575.

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, 5025 + ... + 18874.

Almost surely, 2^165500575 is an apocalyptic number.

165500575 is a deficient number, since it is larger than the sum of its proper divisors (40469625).

165500575 is a wasteful number, since it uses less digits than its factorization.

165500575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24186 (or 24181 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 165500575 is about 12864.7026782588. The cubic root of 165500575 is about 549.0347532697.

The spelling of 165500575 in words is "one hundred sixty-five million, five hundred thousand, five hundred seventy-five".