16725616 has 20 divisors (see below), whose sum is σ = 33452224. Its totient is φ = 8092800.

The previous prime is 16725607. The next prime is 16725617. The reversal of 16725616 is 61652761.

It is a happy number.

16725616 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725617) 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, 16365 + ... + 17356.

Almost surely, 2^16725616 is an apocalyptic number.

16725616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16725616 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16725616 is a wasteful number, since it uses less digits than its factorization.

16725616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33760 (or 33754 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 16725616 is about 4089.6963212444. The cubic root of 16725616 is about 255.7372793025.

The spelling of 16725616 in words is "sixteen million, seven hundred twenty-five thousand, six hundred sixteen".