13161240443016 has 24 divisors (see below), whose sum is σ = 35645026200030. Its totient is φ = 4387080147648.

The previous prime is 13161240443003. The next prime is 13161240443023. The reversal of 13161240443016 is 61034404216131.

13161240443016 is a `hidden beast` number, since 1 + 3 + 1 + 612 + 4 + 0 + 4 + 4 + 30 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11109888922500 + 2051351520516 = 3333150^2 + 1432254^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 91397503005 + ... + 91397503148.

Almost surely, 2^{13161240443016} is an apocalyptic number.

It is an amenable number.

13161240443016 is an abundant number, since it is smaller than the sum of its proper divisors (22483785757014).

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

13161240443016 is a wasteful number, since it uses less digits than its factorization.

13161240443016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182795006165 (or 182795006158 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 13161240443016 its reverse (61034404216131), we get a palindrome (74195644659147).

The spelling of 13161240443016 in words is "thirteen trillion, one hundred sixty-one billion, two hundred forty million, four hundred forty-three thousand, sixteen".