16116666 has 8 divisors (see below), whose sum is σ = 32233344. Its totient is φ = 5372220.

The previous prime is 16116643. The next prime is 16116673. The reversal of 16116666 is 66661161.

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

16116666 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343050 + ... + 1343061.

It is an arithmetic number, because the mean of its divisors is an integer number (4029168).

Almost surely, 2^16116666 is an apocalyptic number.

16116666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16116666 is a wasteful number, since it uses less digits than its factorization.

16116666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686116.

The product of its digits is 7776, while the sum is 33.

The square root of 16116666 is about 4014.5567625829. The cubic root of 16116666 is about 252.5951854967.

The spelling of 16116666 in words is "sixteen million, one hundred sixteen thousand, six hundred sixty-six".