165280027 has 8 divisors (see below), whose sum is σ = 180449280. Its totient is φ = 150134760.

The previous prime is 165280013. The next prime is 165280033. The reversal of 165280027 is 720082561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165280027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165280007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10374 + ... + 20932.

It is an arithmetic number, because the mean of its divisors is an integer number (22556160).

Almost surely, 2^165280027 is an apocalyptic number.

165280027 is a deficient number, since it is larger than the sum of its proper divisors (15169253).

165280027 is a wasteful number, since it uses less digits than its factorization.

165280027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11993.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 165280027 is about 12856.1279940735. The cubic root of 165280027 is about 548.7907614797.

The spelling of 165280027 in words is "one hundred sixty-five million, two hundred eighty thousand, twenty-seven".