33303122161 has 2 divisors, whose sum is σ = 33303122162. Its totient is φ = 33303122160.

The previous prime is 33303122147. The next prime is 33303122201. The reversal of 33303122161 is 16122130333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22814289936 + 10488832225 = 151044^2 + 102415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33303122161 is a prime.

It is a super-2 number, since 2×33303122161² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33303122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16651561080 + 16651561081.

It is an arithmetic number, because the mean of its divisors is an integer number (16651561081).

Almost surely, 2^33303122161 is an apocalyptic number.

It is an amenable number.

33303122161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33303122161 is an equidigital number, since it uses as much as digits as its factorization.

33303122161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 33303122161 its reverse (16122130333), we get a palindrome (49425252494).

The spelling of 33303122161 in words is "thirty-three billion, three hundred three million, one hundred twenty-two thousand, one hundred sixty-one".