16616106 has 48 divisors (see below), whose sum is σ = 41061384. Its totient is φ = 4810752.

The previous prime is 16616099. The next prime is 16616107. The reversal of 16616106 is 60161661.

It can be written as a sum of positive squares in 4 ways, for example, as 16040025 + 576081 = 4005^2 + 759^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16616106.

It is not an unprimeable number, because it can be changed into a prime (16616107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1890 + ... + 6066.

Almost surely, 2^16616106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16616106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20530692).

16616106 is an abundant number, since it is smaller than the sum of its proper divisors (24445278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16616106 is a wasteful number, since it uses less digits than its factorization.

16616106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 4212 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 16616106 is about 4076.2858094103. The cubic root of 16616106 is about 255.1779150544.

Adding to 16616106 its reverse (60161661), we get a palindrome (76777767).

The spelling of 16616106 in words is "sixteen million, six hundred sixteen thousand, one hundred six".