165480169 has 4 divisors (see below), whose sum is σ = 169952644. Its totient is φ = 161007696.

The previous prime is 165480167. The next prime is 165480179. The reversal of 165480169 is 961084561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 72454144 + 93026025 = 8512^2 + 9645^2 .

It is a cyclic number.

It is not a de Polignac number, because 165480169 - 2¹ = 165480167 is a prime.

It is a super-2 number, since 2×165480169² = 54767372664537122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165480167) 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, 2236182 + ... + 2236255.

It is an arithmetic number, because the mean of its divisors is an integer number (42488161).

Almost surely, 2^165480169 is an apocalyptic number.

It is an amenable number.

165480169 is a deficient number, since it is larger than the sum of its proper divisors (4472475).

165480169 is an equidigital number, since it uses as much as digits as its factorization.

165480169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472474.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 165480169 is about 12863.9095534756. The cubic root of 165480169 is about 549.0121872581.

It can be divided in two parts, 165480 and 169, that added together give a square (165649 = 407²).

The spelling of 165480169 in words is "one hundred sixty-five million, four hundred eighty thousand, one hundred sixty-nine".