16655889 has 8 divisors (see below), whose sum is σ = 22973760. Its totient is φ = 10720976.

The previous prime is 16655879. The next prime is 16655893. The reversal of 16655889 is 98855661.

16655889 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16655889 - 2⁸ = 16655633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16655879) 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, 95637 + ... + 95810.

It is an arithmetic number, because the mean of its divisors is an integer number (2871720).

Almost surely, 2^16655889 is an apocalyptic number.

It is an amenable number.

16655889 is a deficient number, since it is larger than the sum of its proper divisors (6317871).

16655889 is a wasteful number, since it uses less digits than its factorization.

16655889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191479.

The product of its digits is 518400, while the sum is 48.

The square root of 16655889 is about 4081.1627019760. The cubic root of 16655889 is about 255.3814054077.

The spelling of 16655889 in words is "sixteen million, six hundred fifty-five thousand, eight hundred eighty-nine".