20133033169 has 2 divisors, whose sum is σ = 20133033170. Its totient is φ = 20133033168.

The previous prime is 20133033163. The next prime is 20133033229. The reversal of 20133033169 is 96133033102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20125678225 + 7354944 = 141865^2 + 2712^2 .

It is a cyclic number.

It is not a de Polignac number, because 20133033169 - 2³ = 20133033161 is a prime.

It is a super-2 number, since 2×20133033169² (a number of 21 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 20133033169.

It is not a weakly prime, because it can be changed into another prime (20133033161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066516584 + 10066516585.

It is an arithmetic number, because the mean of its divisors is an integer number (10066516585).

Almost surely, 2^20133033169 is an apocalyptic number.

It is an amenable number.

20133033169 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133033169 is an equidigital number, since it uses as much as digits as its factorization.

20133033169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 31.

The spelling of 20133033169 in words is "twenty billion, one hundred thirty-three million, thirty-three thousand, one hundred sixty-nine".