66160 has 20 divisors (see below), whose sum is σ = 154008. Its totient is φ = 26432.

The previous prime is 66137. The next prime is 66161. The reversal of 66160 is 6166.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334 + ... + 493.

2⁶⁶¹⁶⁰ is an apocalyptic number.

It is an amenable number.

66160 is an abundant number, since it is smaller than the sum of its proper divisors (87848).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77004).

66160 is a wasteful number, since it uses less digits than its factorization.

66160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 66160 is about 257.2158626524. The cubic root of 66160 is about 40.4450303376.

The spelling of 66160 in words is "sixty-six thousand, one hundred sixty".