12161360116 has 12 divisors (see below), whose sum is σ = 21285138532. Its totient is φ = 6079891968.

The previous prime is 12161360069. The next prime is 12161360143. The reversal of 12161360116 is 61106316121.

It can be written as a sum of positive squares in 2 ways, for example, as 5146627600 + 7014732516 = 71740^2 + 83754^2 .

It is a congruent number.

It is an unprimeable number.

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, 161595 + ... + 224578.

Almost surely, 2^12161360116 is an apocalyptic number.

It is an amenable number.

12161360116 is a deficient number, since it is larger than the sum of its proper divisors (9123778416).

12161360116 is a wasteful number, since it uses less digits than its factorization.

12161360116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394050 (or 394048 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 12161360116 its reverse (61106316121), we get a palindrome (73267676237).

The spelling of 12161360116 in words is "twelve billion, one hundred sixty-one million, three hundred sixty thousand, one hundred sixteen".