162566 has 4 divisors (see below), whose sum is σ = 243852. Its totient is φ = 81282.

The previous prime is 162563. The next prime is 162577. The reversal of 162566 is 665261.

162566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665261 = 17 ⋅39133.

It is a Curzon number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40640 + ... + 40643.

It is an arithmetic number, because the mean of its divisors is an integer number (60963).

2¹⁶²⁵⁶⁶ is an apocalyptic number.

162566 is a deficient number, since it is larger than the sum of its proper divisors (81286).

162566 is an equidigital number, since it uses as much as digits as its factorization.

162566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81285.

The product of its digits is 2160, while the sum is 26.

The square root of 162566 is about 403.1947420292. The cubic root of 162566 is about 54.5770310434.

The spelling of 162566 in words is "one hundred sixty-two thousand, five hundred sixty-six".