165560443 has 4 divisors (see below), whose sum is σ = 165595768. Its totient is φ = 165525120.

The previous prime is 165560413. The next prime is 165560453. The reversal of 165560443 is 344065561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165560443 - 2²¹ = 163463291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165560399 and 165560408.

It is not an unprimeable number, because it can be changed into a prime (165560413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9318 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (41398942).

Almost surely, 2^165560443 is an apocalyptic number.

165560443 is a deficient number, since it is larger than the sum of its proper divisors (35325).

165560443 is an equidigital number, since it uses as much as digits as its factorization.

165560443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35324.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 165560443 is about 12867.0292997257. The cubic root of 165560443 is about 549.1009477024.

The spelling of 165560443 in words is "one hundred sixty-five million, five hundred sixty thousand, four hundred forty-three".