16033489920 has 792 divisors, whose sum is σ = 67274311104. Its totient is φ = 3650863104.

The previous prime is 16033489919. The next prime is 16033489931. The reversal of 16033489920 is 2998433061.

It is a happy number.

16033489920 is a `hidden beast` number, since 1 + 603 + 34 + 8 + 9 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 60963709 + ... + 60963971.

It is an arithmetic number, because the mean of its divisors is an integer number (84942312).

Almost surely, 2^16033489920 is an apocalyptic number.

16033489920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16033489920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33637155552).

16033489920 is an abundant number, since it is smaller than the sum of its proper divisors (51240821184).

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

16033489920 is an equidigital number, since it uses as much as digits as its factorization.

16033489920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 16033489920 in words is "sixteen billion, thirty-three million, four hundred eighty-nine thousand, nine hundred twenty".