13116614545 has 4 divisors (see below), whose sum is σ = 15739937460. Its totient is φ = 10493291632.

The previous prime is 13116614543. The next prime is 13116614549. The reversal of 13116614545 is 54541661131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54541661131 = 751 ⋅72625381.

It can be written as a sum of positive squares in 2 ways, for example, as 2970686016 + 10145928529 = 54504^2 + 100727^2 .

It is a cyclic number.

It is not a de Polignac number, because 13116614545 - 2¹ = 13116614543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13116614543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1311661450 + ... + 1311661459.

It is an arithmetic number, because the mean of its divisors is an integer number (3934984365).

Almost surely, 2^13116614545 is an apocalyptic number.

It is an amenable number.

13116614545 is a deficient number, since it is larger than the sum of its proper divisors (2623322915).

13116614545 is an equidigital number, since it uses as much as digits as its factorization.

13116614545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623322914.

The product of its digits is 43200, while the sum is 37.

The spelling of 13116614545 in words is "thirteen billion, one hundred sixteen million, six hundred fourteen thousand, five hundred forty-five".