165827967 has 8 divisors (see below), whose sum is σ = 221698224. Its totient is φ = 110254848.

The previous prime is 165827957. The next prime is 165827993. The reversal of 165827967 is 769728561.

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

It is not a de Polignac number, because 165827967 - 2¹⁵ = 165795199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165827917) 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, 72978 + ... + 75215.

It is an arithmetic number, because the mean of its divisors is an integer number (27712278).

Almost surely, 2^165827967 is an apocalyptic number.

165827967 is a deficient number, since it is larger than the sum of its proper divisors (55870257).

165827967 is a wasteful number, since it uses less digits than its factorization.

165827967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148569.

The product of its digits is 1270080, while the sum is 51.

The square root of 165827967 is about 12877.4208209563. The cubic root of 165827967 is about 549.3965469565.

The spelling of 165827967 in words is "one hundred sixty-five million, eight hundred twenty-seven thousand, nine hundred sixty-seven".