12516484461 has 16 divisors (see below), whose sum is σ = 18033743616. Its totient is φ = 7676156736.

The previous prime is 12516484451. The next prime is 12516484499. The reversal of 12516484461 is 16448461521.

12516484461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12516484461 - 2⁵ = 12516484429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516484451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536245 + ... + 559098.

It is an arithmetic number, because the mean of its divisors is an integer number (1127108976).

Almost surely, 2^12516484461 is an apocalyptic number.

It is an amenable number.

12516484461 is a deficient number, since it is larger than the sum of its proper divisors (5517259155).

12516484461 is a wasteful number, since it uses less digits than its factorization.

12516484461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095652.

The product of its digits is 184320, while the sum is 42.

The spelling of 12516484461 in words is "twelve billion, five hundred sixteen million, four hundred eighty-four thousand, four hundred sixty-one".