165667355 has 8 divisors (see below), whose sum is σ = 227200992. Its totient is φ = 113600448.

The previous prime is 165667297. The next prime is 165667357. The reversal of 165667355 is 553766561.

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 165667355 - 2¹⁰ = 165666331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165667357) 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, 2366642 + ... + 2366711.

It is an arithmetic number, because the mean of its divisors is an integer number (28400124).

Almost surely, 2^165667355 is an apocalyptic number.

165667355 is a deficient number, since it is larger than the sum of its proper divisors (61533637).

165667355 is an equidigital number, since it uses as much as digits as its factorization.

165667355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733365.

The product of its digits is 567000, while the sum is 44.

The square root of 165667355 is about 12871.1831235516. The cubic root of 165667355 is about 549.2191177344.

The spelling of 165667355 in words is "one hundred sixty-five million, six hundred sixty-seven thousand, three hundred fifty-five".