16401166 has 8 divisors (see below), whose sum is σ = 24779160. Its totient is φ = 8141448.

The previous prime is 16401163. The next prime is 16401169. The reversal of 16401166 is 66110461.

16401166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16401163) and next prime (16401169).

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

It is a self number, because there is not a number n which added to its sum of digits gives 16401166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16401163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29221 + ... + 29776.

It is an arithmetic number, because the mean of its divisors is an integer number (3097395).

Almost surely, 2^16401166 is an apocalyptic number.

16401166 is a deficient number, since it is larger than the sum of its proper divisors (8377994).

16401166 is a wasteful number, since it uses less digits than its factorization.

16401166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59138.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 16401166 is about 4049.8353052933. The cubic root of 16401166 is about 254.0728395888.

The spelling of 16401166 in words is "sixteen million, four hundred one thousand, one hundred sixty-six".