16648215 has 8 divisors (see below), whose sum is σ = 26637168. Its totient is φ = 8879040.

The previous prime is 16648213. The next prime is 16648231. The reversal of 16648215 is 51284661.

16648215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16648215 - 2¹ = 16648213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16648211) 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, 554926 + ... + 554955.

It is an arithmetic number, because the mean of its divisors is an integer number (3329646).

Almost surely, 2^16648215 is an apocalyptic number.

16648215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16648215 is a deficient number, since it is larger than the sum of its proper divisors (9988953).

16648215 is a wasteful number, since it uses less digits than its factorization.

16648215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109889.

The product of its digits is 11520, while the sum is 33.

The square root of 16648215 is about 4080.2224204080. Note that the first 3 decimals coincide. The cubic root of 16648215 is about 255.3421780816.

The spelling of 16648215 in words is "sixteen million, six hundred forty-eight thousand, two hundred fifteen".