12461610321656 has 8 divisors (see below), whose sum is σ = 23365519353120. Its totient is φ = 6230805160824.

The previous prime is 12461610321593. The next prime is 12461610321673. The reversal of 12461610321656 is 65612301616421.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778850645096 + ... + 778850645111.

It is an arithmetic number, because the mean of its divisors is an integer number (2920689919140).

Almost surely, 2^{12461610321656} is an apocalyptic number.

It is an amenable number.

12461610321656 is a deficient number, since it is larger than the sum of its proper divisors (10903909031464).

12461610321656 is a wasteful number, since it uses less digits than its factorization.

12461610321656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557701290213 (or 1557701290209 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 12461610321656 in words is "twelve trillion, four hundred sixty-one billion, six hundred ten million, three hundred twenty-one thousand, six hundred fifty-six".