66522130 has 8 divisors (see below), whose sum is σ = 119739852. Its totient is φ = 26608848.

The previous prime is 66522119. The next prime is 66522163. The reversal of 66522130 is 3122566.

66522130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63504961 + 3017169 = 7969^2 + 1737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66522095 and 66522104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326097 + ... + 3326116.

Almost surely, 2^66522130 is an apocalyptic number.

66522130 is a deficient number, since it is larger than the sum of its proper divisors (53217722).

66522130 is a wasteful number, since it uses less digits than its factorization.

66522130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6652220.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66522130 is about 8156.1099796410. The cubic root of 66522130 is about 405.1868872780.

Adding to 66522130 its reverse (3122566), we get a palindrome (69644696).

The spelling of 66522130 in words is "sixty-six million, five hundred twenty-two thousand, one hundred thirty".