16650223 has 8 divisors (see below), whose sum is σ = 17141040. Its totient is φ = 16163520.

The previous prime is 16650217. The next prime is 16650233. The reversal of 16650223 is 32205661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16650223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650203) 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, 8413 + ... + 10201.

It is an arithmetic number, because the mean of its divisors is an integer number (2142630).

Almost surely, 2^16650223 is an apocalyptic number.

16650223 is a deficient number, since it is larger than the sum of its proper divisors (490817).

16650223 is a wasteful number, since it uses less digits than its factorization.

16650223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16650223 is about 4080.4684780059. The cubic root of 16650223 is about 255.3524435762.

Adding to 16650223 its reverse (32205661), we get a palindrome (48855884).

The spelling of 16650223 in words is "sixteen million, six hundred fifty thousand, two hundred twenty-three".