16648518 has 16 divisors (see below), whose sum is σ = 33672240. Its totient is φ = 5486976.

The previous prime is 16648517. The next prime is 16648543. The reversal of 16648518 is 81584661.

16648518 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16648517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15055 + ... + 16122.

It is an arithmetic number, because the mean of its divisors is an integer number (2104515).

Almost surely, 2^16648518 is an apocalyptic number.

16648518 is an abundant number, since it is smaller than the sum of its proper divisors (17023722).

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

16648518 is a wasteful number, since it uses less digits than its factorization.

16648518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31271.

The product of its digits is 46080, while the sum is 39.

The square root of 16648518 is about 4080.2595505678. The cubic root of 16648518 is about 255.3437271608.

It can be divided in two parts, 166 and 48518, that added together give a palindrome (48684).

The spelling of 16648518 in words is "sixteen million, six hundred forty-eight thousand, five hundred eighteen".