32666 has 4 divisors (see below), whose sum is σ = 49002.
Its totient is φ = 16332.
The previous prime is 32653. The next prime is 32687. The reversal of 32666 is 66623.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66623 = 17 ⋅3919.
It can be written as a sum of positive squares in only one way, i.e., 32041 + 625 = 179^2 + 25^2
32666 is a modest number, since divided by 666 gives 32 as remainder.
It is a nialpdrome in base 8.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8165 + ... + 8168.
232666 is an apocalyptic number.
32666 is a deficient number, since it is larger than the sum of its proper divisors (16336).
32666 is a wasteful number, since it uses less digits than its factorization.
32666 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16335.
The product of its digits is 1296, while the sum is 23.
The square root of 32666 is about 180.7373785358.
The cubic root of 32666 is about 31.9667623638.
It can be divided in two parts, 32 and 666, that multiplied together give a palindrome (21312).
The spelling of 32666 in words is "thirty-two thousand, six hundred sixty-six".