16321166 has 16 divisors (see below), whose sum is σ = 25218864. Its totient is φ = 7917504.

The previous prime is 16321127. The next prime is 16321169. The reversal of 16321166 is 66112361.

16321166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16321169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14330 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (1576179).

Almost surely, 2^16321166 is an apocalyptic number.

16321166 is a deficient number, since it is larger than the sum of its proper divisors (8897698).

16321166 is a wasteful number, since it uses less digits than its factorization.

16321166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its digits is 1296, while the sum is 26.

The square root of 16321166 is about 4039.9462867716. The cubic root of 16321166 is about 253.6590689096.

The spelling of 16321166 in words is "sixteen million, three hundred twenty-one thousand, one hundred sixty-six".