16642168 has 8 divisors (see below), whose sum is σ = 31204080. Its totient is φ = 8321080.

The previous prime is 16642151. The next prime is 16642177. The reversal of 16642168 is 86124661.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040128 + ... + 1040143.

It is an arithmetic number, because the mean of its divisors is an integer number (3900510).

Almost surely, 2^16642168 is an apocalyptic number.

It is an amenable number.

16642168 is a deficient number, since it is larger than the sum of its proper divisors (14561912).

16642168 is a wasteful number, since it uses less digits than its factorization.

16642168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080277 (or 2080273 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 16642168 is about 4079.4813395823. The cubic root of 16642168 is about 255.3112590284.

The spelling of 16642168 in words is "sixteen million, six hundred forty-two thousand, one hundred sixty-eight".