16648655 has 16 divisors (see below), whose sum is σ = 21172320. Its totient is φ = 12532608.

The previous prime is 16648637. The next prime is 16648663. The reversal of 16648655 is 55684661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16648655 - 2⁶ = 16648591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15929 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (1323270).

Almost surely, 2^16648655 is an apocalyptic number.

16648655 is a deficient number, since it is larger than the sum of its proper divisors (4523665).

16648655 is a wasteful number, since it uses less digits than its factorization.

16648655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210.

The product of its digits is 172800, while the sum is 41.

The square root of 16648655 is about 4080.2763386810. The cubic root of 16648655 is about 255.3444275634.

The spelling of 16648655 in words is "sixteen million, six hundred forty-eight thousand, six hundred fifty-five".