16648 has 8 divisors (see below), whose sum is σ = 31230. Its totient is φ = 8320.

The previous prime is 16633. The next prime is 16649. The reversal of 16648 is 84661.

It can be written as a sum of positive squares in only one way, i.e., 14884 + 1764 = 122^2 + 42^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (16649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033 + ... + 1048.

2¹⁶⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

16648 is a deficient number, since it is larger than the sum of its proper divisors (14582).

16648 is a wasteful number, since it uses less digits than its factorization.

16648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087 (or 2083 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 16648 is about 129.0271289303. The cubic root of 16648 is about 25.5341078889.

The spelling of 16648 in words is "sixteen thousand, six hundred forty-eight".