16630189 has 4 divisors (see below), whose sum is σ = 16644256. Its totient is φ = 16616124.

The previous prime is 16630177. The next prime is 16630193. The reversal of 16630189 is 98103661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16630189 - 2⁵ = 16630157 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 (16630109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5079 + ... + 7684.

It is an arithmetic number, because the mean of its divisors is an integer number (4161064).

Almost surely, 2^16630189 is an apocalyptic number.

It is an amenable number.

16630189 is a deficient number, since it is larger than the sum of its proper divisors (14067).

16630189 is a wasteful number, since it uses less digits than its factorization.

16630189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14066.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 16630189 is about 4078.0128739375. The cubic root of 16630189 is about 255.2499868098.

The spelling of 16630189 in words is "sixteen million, six hundred thirty thousand, one hundred eighty-nine".