33350340181 has 2 divisors, whose sum is σ = 33350340182. Its totient is φ = 33350340180.

The previous prime is 33350340167. The next prime is 33350340187. The reversal of 33350340181 is 18104305333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30709408081 + 2640932100 = 175241^2 + 51390^2 .

It is an emirp because it is prime and its reverse (18104305333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33350340181 - 2¹⁹ = 33349815893 is a prime.

It is a super-2 number, since 2×33350340181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33350340187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16675170090 + 16675170091.

It is an arithmetic number, because the mean of its divisors is an integer number (16675170091).

Almost surely, 2^33350340181 is an apocalyptic number.

It is an amenable number.

33350340181 is a deficient number, since it is larger than the sum of its proper divisors (1).

33350340181 is an equidigital number, since it uses as much as digits as its factorization.

33350340181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 33350340181 in words is "thirty-three billion, three hundred fifty million, three hundred forty thousand, one hundred eighty-one".