33166112009 has 4 divisors (see below), whose sum is σ = 33186057216. Its totient is φ = 33146166804.

The previous prime is 33166111963. The next prime is 33166112027. The reversal of 33166112009 is 90021166133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90021166133 = 167 ⋅539048899.

It is a cyclic number.

It is not a de Polignac number, because 33166112009 - 2³² = 28871144713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33166112029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9970109 + ... + 9973434.

It is an arithmetic number, because the mean of its divisors is an integer number (8296514304).

Almost surely, 2^33166112009 is an apocalyptic number.

It is an amenable number.

33166112009 is a deficient number, since it is larger than the sum of its proper divisors (19945207).

33166112009 is a wasteful number, since it uses less digits than its factorization.

33166112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19945206.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 33166112009 in words is "thirty-three billion, one hundred sixty-six million, one hundred twelve thousand, nine".