16366 has 12 divisors (see below), whose sum is σ = 28728. Its totient is φ = 6972.

The previous prime is 16363. The next prime is 16369. The reversal of 16366 is 66361.

It is an interprime number because it is at equal distance from previous prime (16363) and next prime (16369).

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15 + ... + 181.

It is an arithmetic number, because the mean of its divisors is an integer number (2394).

2¹⁶³⁶⁶ is an apocalyptic number.

16366 is a deficient number, since it is larger than the sum of its proper divisors (12362).

16366 is a wasteful number, since it uses less digits than its factorization.

16366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 176 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 16366 is about 127.9296681775. The cubic root of 16366 is about 25.3891122452.

The spelling of 16366 in words is "sixteen thousand, three hundred sixty-six".