16533288772 has 96 divisors (see below), whose sum is σ = 39248858880. Its totient is φ = 5884600320.

The previous prime is 16533288757. The next prime is 16533288773. The reversal of 16533288772 is 27788233561.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (16533288773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367104 + ... + 409672.

It is an arithmetic number, because the mean of its divisors is an integer number (408842280).

Almost surely, 2^16533288772 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 16533288772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19624429440).

16533288772 is an abundant number, since it is smaller than the sum of its proper divisors (22715570108).

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

16533288772 is a wasteful number, since it uses less digits than its factorization.

16533288772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42701 (or 42699 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The spelling of 16533288772 in words is "sixteen billion, five hundred thirty-three million, two hundred eighty-eight thousand, seven hundred seventy-two".