33056139168 has 144 divisors (see below), whose sum is σ = 101303898696. Its totient is φ = 10164142080.

The previous prime is 33056139163. The next prime is 33056139169. The reversal of 33056139168 is 86193165033.

It can be written as a sum of positive squares in 4 ways, for example, as 4795839504 + 28260299664 = 69252^2 + 168108^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (33056139163) 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 in 23 ways as a sum of consecutive naturals, for example, 9137296 + ... + 9140912.

Almost surely, 2^33056139168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33056139168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50651949348).

33056139168 is an abundant number, since it is smaller than the sum of its proper divisors (68247759528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33056139168 is a wasteful number, since it uses less digits than its factorization.

33056139168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6087 (or 6076 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 33056139168 in words is "thirty-three billion, fifty-six million, one hundred thirty-nine thousand, one hundred sixty-eight".