66130704 has 120 divisors (see below), whose sum is σ = 198237312. Its totient is φ = 20528640.

The previous prime is 66130679. The next prime is 66130709. The reversal of 66130704 is 40703166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66130709) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 135549 + ... + 136035.

Almost surely, 2^66130704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66130704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99118656).

66130704 is an abundant number, since it is smaller than the sum of its proper divisors (132106608).

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

66130704 is a wasteful number, since it uses less digits than its factorization.

66130704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 66130704 is about 8132.0787010456. The cubic root of 66130704 is about 404.3905969807.

The spelling of 66130704 in words is "sixty-six million, one hundred thirty thousand, seven hundred four".