64166 has 4 divisors (see below), whose sum is σ = 96252. Its totient is φ = 32082.

The previous prime is 64157. The next prime is 64171. The reversal of 64166 is 66146.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66146 = 2 ⋅33073.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

64166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16040 + ... + 16043.

It is an arithmetic number, because the mean of its divisors is an integer number (24063).

2⁶⁴¹⁶⁶ is an apocalyptic number.

64166 is a deficient number, since it is larger than the sum of its proper divisors (32086).

64166 is a wasteful number, since it uses less digits than its factorization.

64166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32085.

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

The square root of 64166 is about 253.3100866527. The cubic root of 64166 is about 40.0345534762.

It can be divided in two parts, 641 and 66, that added together give a palindrome (707).

The spelling of 64166 in words is "sixty-four thousand, one hundred sixty-six".