165818033 has 2 divisors, whose sum is σ = 165818034. Its totient is φ = 165818032.

The previous prime is 165818011. The next prime is 165818129. The reversal of 165818033 is 330818561.

165818033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116143729 + 49674304 = 10777^2 + 7048^2 .

It is an emirp because it is prime and its reverse (330818561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165818033 - 2⁸ = 165817777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165817984 and 165818002.

It is not a weakly prime, because it can be changed into another prime (165818333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82909016 + 82909017.

It is an arithmetic number, because the mean of its divisors is an integer number (82909017).

Almost surely, 2^165818033 is an apocalyptic number.

It is an amenable number.

165818033 is a deficient number, since it is larger than the sum of its proper divisors (1).

165818033 is an equidigital number, since it uses as much as digits as its factorization.

165818033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 165818033 is about 12877.0351012956. The cubic root of 165818033 is about 549.3855761205.

It can be divided in two parts, 1658 and 18033, that added together give a palindrome (19691).

The spelling of 165818033 in words is "one hundred sixty-five million, eight hundred eighteen thousand, thirty-three".