165960575 has 36 divisors (see below), whose sum is σ = 229271784. Its totient is φ = 119064000.

The previous prime is 165960563. The next prime is 165960581. The reversal of 165960575 is 575069561.

It is not a de Polignac number, because 165960575 - 2¹⁰ = 165959551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 250745 + ... + 251405.

Almost surely, 2^165960575 is an apocalyptic number.

165960575 is a deficient number, since it is larger than the sum of its proper divisors (63311209).

165960575 is a wasteful number, since it uses less digits than its factorization.

165960575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 165960575 is about 12882.5686491476. The cubic root of 165960575 is about 549.5429536360.

The spelling of 165960575 in words is "one hundred sixty-five million, nine hundred sixty thousand, five hundred seventy-five".