163066 has 4 divisors (see below), whose sum is σ = 244602. Its totient is φ = 81532.

The previous prime is 163063. The next prime is 163109. The reversal of 163066 is 660361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 60025 = 321^2 + 245^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (163061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40765 + ... + 40768.

2¹⁶³⁰⁶⁶ is an apocalyptic number.

163066 is a deficient number, since it is larger than the sum of its proper divisors (81536).

163066 is an equidigital number, since it uses as much as digits as its factorization.

163066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81535.

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

The square root of 163066 is about 403.8143137631. The cubic root of 163066 is about 54.6329274923.

The spelling of 163066 in words is "one hundred sixty-three thousand, sixty-six".