66636416614 has 16 divisors (see below), whose sum is σ = 102817438416. Its totient is φ = 32370681600.

The previous prime is 66636416597. The next prime is 66636416629. The reversal of 66636416614 is 41661463666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666212 + ... + 1705735.

It is an arithmetic number, because the mean of its divisors is an integer number (6426089901).

Almost surely, 2^66636416614 is an apocalyptic number.

66636416614 is a deficient number, since it is larger than the sum of its proper divisors (36181021802).

66636416614 is a wasteful number, since it uses less digits than its factorization.

66636416614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372231.

The product of its digits is 2239488, while the sum is 49.

The spelling of 66636416614 in words is "sixty-six billion, six hundred thirty-six million, four hundred sixteen thousand, six hundred fourteen".