16461744320 has 112 divisors (see below), whose sum is σ = 44960609088. Its totient is φ = 5623726080.

The previous prime is 16461744311. The next prime is 16461744323. The reversal of 16461744320 is 2344716461.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (16461744323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616364 + ... + 642516.

Almost surely, 2^16461744320 is an apocalyptic number.

16461744320 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 16461744320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22480304544).

16461744320 is an abundant number, since it is smaller than the sum of its proper divisors (28498864768).

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

16461744320 is a wasteful number, since it uses less digits than its factorization.

16461744320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26458 (or 26448 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 16461744320 in words is "sixteen billion, four hundred sixty-one million, seven hundred forty-four thousand, three hundred twenty".