13100604345505 has 8 divisors (see below), whose sum is σ = 15720744875112. Its totient is φ = 10480470369408.

The previous prime is 13100604345419. The next prime is 13100604345533. The reversal of 13100604345505 is 50554340600131.

It can be written as a sum of positive squares in 4 ways, for example, as 71305554961 + 13029298790544 = 267031^2 + 3609612^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13100604345505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5979637 + ... + 7871293.

It is an arithmetic number, because the mean of its divisors is an integer number (1965093109389).

Almost surely, 2^{13100604345505} is an apocalyptic number.

It is an amenable number.

13100604345505 is a deficient number, since it is larger than the sum of its proper divisors (2620140529607).

13100604345505 is a wasteful number, since it uses less digits than its factorization.

13100604345505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276755.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 13100604345505 its reverse (50554340600131), we get a palindrome (63654944945636).

It can be divided in two parts, 1310060 and 4345505, that added together give a palindrome (5655565).

The spelling of 13100604345505 in words is "thirteen trillion, one hundred billion, six hundred four million, three hundred forty-five thousand, five hundred five".