16666094 has 4 divisors (see below), whose sum is σ = 24999144. Its totient is φ = 8333046.

The previous prime is 16666093. The next prime is 16666141. The reversal of 16666094 is 49066661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16666093) by changing a digit.

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 as a sum of consecutive naturals, namely, 4166522 + ... + 4166525.

It is an arithmetic number, because the mean of its divisors is an integer number (6249786).

Almost surely, 2^16666094 is an apocalyptic number.

16666094 is a deficient number, since it is larger than the sum of its proper divisors (8333050).

16666094 is an equidigital number, since it uses as much as digits as its factorization.

16666094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8333049.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 16666094 is about 4082.4127669798. The cubic root of 16666094 is about 255.4335518319.

The spelling of 16666094 in words is "sixteen million, six hundred sixty-six thousand, ninety-four".