16662233 has 8 divisors (see below), whose sum is σ = 19074240. Its totient is φ = 14258160.

The previous prime is 16662229. The next prime is 16662241. The reversal of 16662233 is 33226661.

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

It is not a de Polignac number, because 16662233 - 2² = 16662229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16662196 and 16662205.

It is not an unprimeable number, because it can be changed into a prime (16662203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3563 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (2384280).

Almost surely, 2^16662233 is an apocalyptic number.

It is an amenable number.

16662233 is a deficient number, since it is larger than the sum of its proper divisors (2412007).

16662233 is an equidigital number, since it uses as much as digits as its factorization.

16662233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967.

The product of its digits is 7776, while the sum is 29.

The square root of 16662233 is about 4081.9398574697. The cubic root of 16662233 is about 255.4138250518.

Adding to 16662233 its reverse (33226661), we get a palindrome (49888894).

The spelling of 16662233 in words is "sixteen million, six hundred sixty-two thousand, two hundred thirty-three".