16675680 has 144 divisors (see below), whose sum is σ = 61190640. Its totient is φ = 3806208.

The previous prime is 16675679. The next prime is 16675709. The reversal of 16675680 is 8657661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23166 + ... + 23874.

It is an arithmetic number, because the mean of its divisors is an integer number (424935).

Almost surely, 2^16675680 is an apocalyptic number.

16675680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16675680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30595320).

16675680 is an abundant number, since it is smaller than the sum of its proper divisors (44514960).

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

16675680 is a wasteful number, since it uses less digits than its factorization.

16675680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 16675680 is about 4083.5866588087. The cubic root of 16675680 is about 255.4825158487.

The spelling of 16675680 in words is "sixteen million, six hundred seventy-five thousand, six hundred eighty".