165770227 has 8 divisors (see below), whose sum is σ = 189907200. Its totient is φ = 141747144.

The previous prime is 165770221. The next prime is 165770233. The reversal of 165770227 is 722077561.

It is an interprime number because it is at equal distance from previous prime (165770221) and next prime (165770233).

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

It is not a de Polignac number, because 165770227 - 2³ = 165770219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165770221) 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, 25327 + ... + 31192.

It is an arithmetic number, because the mean of its divisors is an integer number (23738400).

Almost surely, 2^165770227 is an apocalyptic number.

165770227 is a deficient number, since it is larger than the sum of its proper divisors (24136973).

165770227 is an equidigital number, since it uses as much as digits as its factorization.

165770227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56945.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 165770227 is about 12875.1787172062. The cubic root of 165770227 is about 549.3327743619.

The spelling of 165770227 in words is "one hundred sixty-five million, seven hundred seventy thousand, two hundred twenty-seven".