662166 has 12 divisors (see below), whose sum is σ = 1434732. Its totient is φ = 220716.

The previous prime is 662149. The next prime is 662177. The reversal of 662166 is 661266.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18376 + ... + 18411.

It is an arithmetic number, because the mean of its divisors is an integer number (119561).

2⁶⁶²¹⁶⁶ is an apocalyptic number.

662166 is an abundant number, since it is smaller than the sum of its proper divisors (772566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

662166 is a wasteful number, since it uses less digits than its factorization.

662166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36795 (or 36792 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 662166 is about 813.7358293697. The cubic root of 662166 is about 87.1610177019.

Subtracting from 662166 its reverse (661266), we obtain a square (900 = 30²).

It can be divided in two parts, 662 and 166, that added together give a palindrome (828).

The spelling of 662166 in words is "six hundred sixty-two thousand, one hundred sixty-six".