16675665 has 8 divisors (see below), whose sum is σ = 26681088. Its totient is φ = 8893680.

The previous prime is 16675651. The next prime is 16675669. The reversal of 16675665 is 56657661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16675665 - 2⁴ = 16675649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16675669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555841 + ... + 555870.

It is an arithmetic number, because the mean of its divisors is an integer number (3335136).

Almost surely, 2^16675665 is an apocalyptic number.

16675665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16675665 is a deficient number, since it is larger than the sum of its proper divisors (10005423).

16675665 is a wasteful number, since it uses less digits than its factorization.

16675665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111719.

The product of its digits is 226800, while the sum is 42.

The square root of 16675665 is about 4083.5848221875. The cubic root of 16675665 is about 255.4824392453.

The spelling of 16675665 in words is "sixteen million, six hundred seventy-five thousand, six hundred sixty-five".