165580075 has 6 divisors (see below), whose sum is σ = 205319324. Its totient is φ = 132464040.

The previous prime is 165580073. The next prime is 165580087. The reversal of 165580075 is 570085561.

It is not a de Polignac number, because 165580075 - 2¹ = 165580073 is a prime.

It is a super-2 number, since 2×165580075² = 54833522474011250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165580073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3311577 + ... + 3311626.

Almost surely, 2^165580075 is an apocalyptic number.

165580075 is a deficient number, since it is larger than the sum of its proper divisors (39739249).

165580075 is an equidigital number, since it uses as much as digits as its factorization.

165580075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623213 (or 6623208 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 165580075 is about 12867.7921571651. The cubic root of 165580075 is about 549.1226508007.

The spelling of 165580075 in words is "one hundred sixty-five million, five hundred eighty thousand, seventy-five".