16666122 has 32 divisors (see below), whose sum is σ = 37946880. Its totient is φ = 4830320.

The previous prime is 16666093. The next prime is 16666141. The reversal of 16666122 is 22166661.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16666122.

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 in 15 ways as a sum of consecutive naturals, for example, 3972 + ... + 7007.

It is an arithmetic number, because the mean of its divisors is an integer number (1185840).

Almost surely, 2^16666122 is an apocalyptic number.

16666122 is an abundant number, since it is smaller than the sum of its proper divisors (21280758).

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

16666122 is a wasteful number, since it uses less digits than its factorization.

16666122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018.

The product of its digits is 5184, while the sum is 30.

The square root of 16666122 is about 4082.4161963230. The cubic root of 16666122 is about 255.4336948795.

The spelling of 16666122 in words is "sixteen million, six hundred sixty-six thousand, one hundred twenty-two".