16663133 has 8 divisors (see below), whose sum is σ = 17584800. Its totient is φ = 15745968.

The previous prime is 16663121. The next prime is 16663159. The reversal of 16663133 is 33136661.

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

It is a cyclic number.

It is not a de Polignac number, because 16663133 - 2¹² = 16659037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16663096 and 16663105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16663103) 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, 8810 + ... + 10532.

It is an arithmetic number, because the mean of its divisors is an integer number (2198100).

Almost surely, 2^16663133 is an apocalyptic number.

It is an amenable number.

16663133 is a deficient number, since it is larger than the sum of its proper divisors (921667).

16663133 is a wasteful number, since it uses less digits than its factorization.

16663133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its digits is 5832, while the sum is 29.

The square root of 16663133 is about 4082.0500976838. The cubic root of 16663133 is about 255.4184236412.

Adding to 16663133 its reverse (33136661), we get a palindrome (49799794).

The spelling of 16663133 in words is "sixteen million, six hundred sixty-three thousand, one hundred thirty-three".