33161280768 has 1296 divisors, whose sum is σ = 134351433216. Its totient is φ = 8047226880.

The previous prime is 33161280751. The next prime is 33161280787. The reversal of 33161280768 is 86708216133.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 771192555 + ... + 771192597.

Almost surely, 2^33161280768 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 33161280768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67175716608).

33161280768 is an abundant number, since it is smaller than the sum of its proper divisors (101190152448).

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

33161280768 is a wasteful number, since it uses less digits than its factorization.

33161280768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 33161280768 in words is "thirty-three billion, one hundred sixty-one million, two hundred eighty thousand, seven hundred sixty-eight".