13106615106550 has 96 divisors (see below), whose sum is σ = 28573828747200. Its totient is φ = 4470884812800.

The previous prime is 13106615106539. The next prime is 13106615106581. The reversal of 13106615106550 is 5560151660131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1438870 + ... + 5318230.

It is an arithmetic number, because the mean of its divisors is an integer number (297644049450).

Almost surely, 2^{13106615106550} is an apocalyptic number.

13106615106550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13106615106550 is an abundant number, since it is smaller than the sum of its proper divisors (15467213640650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13106615106550 is a wasteful number, since it uses less digits than its factorization.

13106615106550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879591 (or 3879572 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 40.

Adding to 13106615106550 its reverse (5560151660131), we get a palindrome (18666766766681).

The spelling of 13106615106550 in words is "thirteen trillion, one hundred six billion, six hundred fifteen million, one hundred six thousand, five hundred fifty".