12646536771608 has 32 divisors (see below), whose sum is σ = 24096713524560. Its totient is φ = 6221563407360.

The previous prime is 12646536771587. The next prime is 12646536771611. The reversal of 12646536771608 is 80617763564621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50932838 + ... + 51180533.

Almost surely, 2^{12646536771608} is an apocalyptic number.

It is an amenable number.

12646536771608 is a deficient number, since it is larger than the sum of its proper divisors (11450176752952).

12646536771608 is a wasteful number, since it uses less digits than its factorization.

12646536771608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102113627 (or 102113623 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 12646536771608 in words is "twelve trillion, six hundred forty-six billion, five hundred thirty-six million, seven hundred seventy-one thousand, six hundred eight".