16968566 has 4 divisors (see below), whose sum is σ = 25452852. Its totient is φ = 8484282.

The previous prime is 16968559. The next prime is 16968583. The reversal of 16968566 is 66586961.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16968566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242140 + ... + 4242143.

It is an arithmetic number, because the mean of its divisors is an integer number (6363213).

Almost surely, 2^16968566 is an apocalyptic number.

16968566 is a deficient number, since it is larger than the sum of its proper divisors (8484286).

16968566 is an equidigital number, since it uses as much as digits as its factorization.

16968566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484285.

The product of its digits is 466560, while the sum is 47.

The square root of 16968566 is about 4119.2919294461. The cubic root of 16968566 is about 256.9695795876.

The spelling of 16968566 in words is "sixteen million, nine hundred sixty-eight thousand, five hundred sixty-six".