12661486011054 has 48 divisors (see below), whose sum is σ = 27572979301920. Its totient is φ = 4199020568640.

The previous prime is 12661486010993. The next prime is 12661486011133. The reversal of 12661486011054 is 45011068416621.

12661486011054 is a `hidden beast` number, since 1 + 2 + 6 + 6 + 1 + 486 + 0 + 110 + 54 = 666.

12661486011054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12661486011054² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4580359 + ... + 6804605.

It is an arithmetic number, because the mean of its divisors is an integer number (574437068790).

Almost surely, 2^{12661486011054} is an apocalyptic number.

12661486011054 is an abundant number, since it is smaller than the sum of its proper divisors (14911493290866).

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

12661486011054 is a wasteful number, since it uses less digits than its factorization.

12661486011054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225865 (or 2225862 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 12661486011054 in words is "twelve trillion, six hundred sixty-one billion, four hundred eighty-six million, eleven thousand, fifty-four".