66107118103 has 16 divisors (see below), whose sum is σ = 71901061120. Its totient is φ = 60416417376.

The previous prime is 66107118083. The next prime is 66107118107. The reversal of 66107118103 is 30181170166.

It is a cyclic number.

It is not a de Polignac number, because 66107118103 - 2⁵ = 66107118071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66107118107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762928 + ... + 845146.

It is an arithmetic number, because the mean of its divisors is an integer number (4493816320).

Almost surely, 2^66107118103 is an apocalyptic number.

66107118103 is a deficient number, since it is larger than the sum of its proper divisors (5793943017).

66107118103 is a wasteful number, since it uses less digits than its factorization.

66107118103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82846.

The product of its (nonzero) digits is 6048, while the sum is 34.

Adding to 66107118103 its reverse (30181170166), we get a palindrome (96288288269).

The spelling of 66107118103 in words is "sixty-six billion, one hundred seven million, one hundred eighteen thousand, one hundred three".