33350986181 has 2 divisors, whose sum is σ = 33350986182. Its totient is φ = 33350986180.

The previous prime is 33350986139. The next prime is 33350986243. The reversal of 33350986181 is 18168905333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33333630625 + 17355556 = 182575^2 + 4166^2 .

It is a cyclic number.

It is not a de Polignac number, because 33350986181 - 2¹⁴ = 33350969797 is a prime.

It is a super-2 number, since 2×33350986181² (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 (33350986381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16675493090 + 16675493091.

It is an arithmetic number, because the mean of its divisors is an integer number (16675493091).

Almost surely, 2^33350986181 is an apocalyptic number.

It is an amenable number.

33350986181 is a deficient number, since it is larger than the sum of its proper divisors (1).

33350986181 is an equidigital number, since it uses as much as digits as its factorization.

33350986181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 33350986181 in words is "thirty-three billion, three hundred fifty million, nine hundred eighty-six thousand, one hundred eighty-one".