66527218207130 has 64 divisors (see below), whose sum is σ = 129198419431200. Its totient is φ = 24570501955584.

The previous prime is 66527218207127. The next prime is 66527218207141. The reversal of 66527218207130 is 3170281272566.

It can be written as a sum of positive squares in 16 ways, for example, as 35089901810929 + 31437316396201 = 5923673^2 + 5606899^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90065546 + ... + 90801194.

Almost surely, 2^{66527218207130} is an apocalyptic number.

66527218207130 is a deficient number, since it is larger than the sum of its proper divisors (62671201224070).

66527218207130 is a wasteful number, since it uses less digits than its factorization.

66527218207130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745763.

The product of its (nonzero) digits is 1693440, while the sum is 50.

Adding to 66527218207130 its reverse (3170281272566), we get a palindrome (69697499479696).

The spelling of 66527218207130 in words is "sixty-six trillion, five hundred twenty-seven billion, two hundred eighteen million, two hundred seven thousand, one hundred thirty".