66130 has 16 divisors (see below), whose sum is σ = 126360. Its totient is φ = 24832.

The previous prime is 66109. The next prime is 66137. The reversal of 66130 is 3166.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53361 + 12769 = 231^2 + 113^2 .

It is not an unprimeable number, because it can be changed into a prime (66137) 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 7 ways as a sum of consecutive naturals, for example, 25 + ... + 364.

2⁶⁶¹³⁰ is an apocalyptic number.

66130 is a deficient number, since it is larger than the sum of its proper divisors (60230).

66130 is a wasteful number, since it uses less digits than its factorization.

66130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 66130 is about 257.1575392634. The cubic root of 66130 is about 40.4389161984.

Adding to 66130 its reverse (3166), we get a palindrome (69296).

It can be divided in two parts, 66 and 130, that added together give a square (196 = 14²).

The spelling of 66130 in words is "sixty-six thousand, one hundred thirty".