16320960000 has 400 divisors, whose sum is σ = 60401602800. Its totient is φ = 4349952000.

The previous prime is 16320959923. The next prime is 16320960013. The reversal of 16320960000 is 6902361.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8639056 + ... + 8640944.

It is an arithmetic number, because the mean of its divisors is an integer number (151004007).

Almost surely, 2^16320960000 is an apocalyptic number.

16320960000 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 16320960000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30200801400).

16320960000 is an abundant number, since it is smaller than the sum of its proper divisors (44080642800).

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

16320960000 is an frugal number, since it uses more digits than its factorization.

16320960000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 16320960000 in words is "sixteen billion, three hundred twenty million, nine hundred sixty thousand".