165667883 has 4 divisors (see below), whose sum is σ = 166266240. Its totient is φ = 165069528.

The previous prime is 165667871. The next prime is 165667913. The reversal of 165667883 is 388766561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 165667883 - 2¹⁰ = 165666859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165667823) 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 3 ways as a sum of consecutive naturals, for example, 298763 + ... + 299316.

It is an arithmetic number, because the mean of its divisors is an integer number (41566560).

Almost surely, 2^165667883 is an apocalyptic number.

165667883 is a deficient number, since it is larger than the sum of its proper divisors (598357).

165667883 is an equidigital number, since it uses as much as digits as its factorization.

165667883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598356.

The product of its digits is 1451520, while the sum is 50.

The square root of 165667883 is about 12871.2036344702. The cubic root of 165667883 is about 549.2197012076.

The spelling of 165667883 in words is "one hundred sixty-five million, six hundred sixty-seven thousand, eight hundred eighty-three".