16533531330 has 64 divisors (see below), whose sum is σ = 41455411200. Its totient is φ = 4214739200.

The previous prime is 16533531323. The next prime is 16533531331. The reversal of 16533531330 is 3313533561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16533531291 and 16533531300.

It is not an unprimeable number, because it can be changed into a prime (16533531331) 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 31 ways as a sum of consecutive naturals, for example, 6210 + ... + 181949.

It is an arithmetic number, because the mean of its divisors is an integer number (647740800).

Almost surely, 2^16533531330 is an apocalyptic number.

16533531330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16533531330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20727705600).

16533531330 is an abundant number, since it is smaller than the sum of its proper divisors (24921879870).

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

16533531330 is a wasteful number, since it uses less digits than its factorization.

16533531330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188299.

The product of its (nonzero) digits is 36450, while the sum is 33.

The spelling of 16533531330 in words is "sixteen billion, five hundred thirty-three million, five hundred thirty-one thousand, three hundred thirty".