16656384 has 48 divisors (see below), whose sum is σ = 44422560. Its totient is φ = 5550080.

The previous prime is 16656383. The next prime is 16656389. The reversal of 16656384 is 48365661.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (16656383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4789 + ... + 7499.

It is an arithmetic number, because the mean of its divisors is an integer number (925470).

Almost surely, 2^16656384 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 16656384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22211280).

16656384 is an abundant number, since it is smaller than the sum of its proper divisors (27766176).

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

16656384 is an equidigital number, since it uses as much as digits as its factorization.

16656384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736 (or 2716 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 16656384 is about 4081.2233460079. The cubic root of 16656384 is about 255.3839352945.

The spelling of 16656384 in words is "sixteen million, six hundred fifty-six thousand, three hundred eighty-four".