13505530666066 has 16 divisors (see below), whose sum is σ = 20640736825344. Its totient is φ = 6625287635824.

The previous prime is 13505530666037. The next prime is 13505530666157. The reversal of 13505530666066 is 66066603550531.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10843311 + ... + 12024493.

It is an arithmetic number, because the mean of its divisors is an integer number (1290046051584).

Almost surely, 2^{13505530666066} is an apocalyptic number.

13505530666066 is a deficient number, since it is larger than the sum of its proper divisors (7135206159278).

13505530666066 is a wasteful number, since it uses less digits than its factorization.

13505530666066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289105.

The product of its (nonzero) digits is 8748000, while the sum is 52.

The spelling of 13505530666066 in words is "thirteen trillion, five hundred five billion, five hundred thirty million, six hundred sixty-six thousand, sixty-six".