16589916 has 72 divisors (see below), whose sum is σ = 49073024. Its totient is φ = 4626720.

The previous prime is 16589897. The next prime is 16589933. The reversal of 16589916 is 61998561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10071 + ... + 11601.

Almost surely, 2^16589916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16589916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24536512).

16589916 is an abundant number, since it is smaller than the sum of its proper divisors (32483108).

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

16589916 is a wasteful number, since it uses less digits than its factorization.

16589916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1586 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 16589916 is about 4073.0720592693. The cubic root of 16589916 is about 255.0437756450.

The spelling of 16589916 in words is "sixteen million, five hundred eighty-nine thousand, nine hundred sixteen".