166833500033 has 2 divisors, whose sum is σ = 166833500034. Its totient is φ = 166833500032.

The previous prime is 166833499999. The next prime is 166833500047. The reversal of 166833500033 is 330005338661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156334833664 + 10498666369 = 395392^2 + 102463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166833500033 is a prime.

It is a super-2 number, since 2×166833500033² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166833500033.

It is not a weakly prime, because it can be changed into another prime (166833500063) 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 as a sum of consecutive naturals, namely, 83416750016 + 83416750017.

It is an arithmetic number, because the mean of its divisors is an integer number (83416750017).

Almost surely, 2^166833500033 is an apocalyptic number.

It is an amenable number.

166833500033 is a deficient number, since it is larger than the sum of its proper divisors (1).

166833500033 is an equidigital number, since it uses as much as digits as its factorization.

166833500033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 38.

Adding to 166833500033 its reverse (330005338661), we get a palindrome (496838838694).

The spelling of 166833500033 in words is "one hundred sixty-six billion, eight hundred thirty-three million, five hundred thousand, thirty-three".