165827669 has 8 divisors (see below), whose sum is σ = 189600960. Its totient is φ = 142075296.

The previous prime is 165827633. The next prime is 165827743. The reversal of 165827669 is 966728561.

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

It is a cyclic number.

It is not a de Polignac number, because 165827669 - 2¹⁶ = 165762133 is a prime.

It is a super-2 number, since 2×165827669² = 54997631611947122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165827069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19697 + ... + 26825.

It is an arithmetic number, because the mean of its divisors is an integer number (23700120).

Almost surely, 2^165827669 is an apocalyptic number.

It is an amenable number.

165827669 is a deficient number, since it is larger than the sum of its proper divisors (23773291).

165827669 is an equidigital number, since it uses as much as digits as its factorization.

165827669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459.

The product of its digits is 1088640, while the sum is 50.

The square root of 165827669 is about 12877.4092503112. The cubic root of 165827669 is about 549.3962178599.

The spelling of 165827669 in words is "one hundred sixty-five million, eight hundred twenty-seven thousand, six hundred sixty-nine".