16628133 has 8 divisors (see below), whose sum is σ = 22770208. Its totient is φ = 10785744.

The previous prime is 16628111. The next prime is 16628189. The reversal of 16628133 is 33182661.

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

It is not a de Polignac number, because 16628133 - 2⁶ = 16628069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16628133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16628233) 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, 74791 + ... + 75012.

It is an arithmetic number, because the mean of its divisors is an integer number (2846276).

Almost surely, 2^16628133 is an apocalyptic number.

It is an amenable number.

16628133 is a deficient number, since it is larger than the sum of its proper divisors (6142075).

16628133 is a wasteful number, since it uses less digits than its factorization.

16628133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149843.

The product of its digits is 5184, while the sum is 30.

The square root of 16628133 is about 4077.7607825864. The cubic root of 16628133 is about 255.2394674745.

It can be divided in two parts, 16628 and 133, that added together give a palindrome (16761).

The spelling of 16628133 in words is "sixteen million, six hundred twenty-eight thousand, one hundred thirty-three".