66616130 has 16 divisors (see below), whose sum is σ = 137039040. Its totient is φ = 22839792.

The previous prime is 66616129. The next prime is 66616139. The reversal of 66616130 is 3161666.

It is a junction number, because it is equal to n+sod(n) for n = 66616093 and 66616102.

It is not an unprimeable number, because it can be changed into a prime (66616139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475760 + ... + 475899.

It is an arithmetic number, because the mean of its divisors is an integer number (8564940).

Almost surely, 2^66616130 is an apocalyptic number.

66616130 is an abundant number, since it is smaller than the sum of its proper divisors (70422910).

66616130 is a wasteful number, since it uses less digits than its factorization.

66616130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951673.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 66616130 is about 8161.8704963997. The cubic root of 66616130 is about 405.3776490663.

Adding to 66616130 its reverse (3161666), we get a palindrome (69777796).

The spelling of 66616130 in words is "sixty-six million, six hundred sixteen thousand, one hundred thirty".