16466 has 4 divisors (see below), whose sum is σ = 24702. Its totient is φ = 8232.

The previous prime is 16453. The next prime is 16477. The reversal of 16466 is 66461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66461 = 41 ⋅1621.

It can be written as a sum of positive squares in only one way, i.e., 15625 + 841 = 125^2 + 29^2 .

It is a super-2 number, since 2×16466² = 542258312, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115 + ... + 4118.

2¹⁶⁴⁶⁶ is an apocalyptic number.

16466 is a deficient number, since it is larger than the sum of its proper divisors (8236).

16466 is an equidigital number, since it uses as much as digits as its factorization.

16466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235.

The product of its digits is 864, while the sum is 23.

The square root of 16466 is about 128.3199127182. The cubic root of 16466 is about 25.4407183717.

The spelling of 16466 in words is "sixteen thousand, four hundred sixty-six".