33531536161 has 2 divisors, whose sum is σ = 33531536162. Its totient is φ = 33531536160.

The previous prime is 33531536111. The next prime is 33531536173. The reversal of 33531536161 is 16163513533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32532976161 + 998560000 = 180369^2 + 31600^2 .

It is a cyclic number.

It is not a de Polignac number, because 33531536161 - 2¹⁹ = 33531011873 is a prime.

It is a super-2 number, since 2×33531536161² (a number of 22 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 33531536161.

It is not a weakly prime, because it can be changed into another prime (33531536111) 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, 16765768080 + 16765768081.

It is an arithmetic number, because the mean of its divisors is an integer number (16765768081).

Almost surely, 2^33531536161 is an apocalyptic number.

It is an amenable number.

33531536161 is a deficient number, since it is larger than the sum of its proper divisors (1).

33531536161 is an equidigital number, since it uses as much as digits as its factorization.

33531536161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 37.

The spelling of 33531536161 in words is "thirty-three billion, five hundred thirty-one million, five hundred thirty-six thousand, one hundred sixty-one".