12711611561272 has 32 divisors (see below), whose sum is σ = 25670177905680. Its totient is φ = 5866326051840.

The previous prime is 12711611561269. The next prime is 12711611561371. The reversal of 12711611561272 is 27216511611721.

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, 4880554 + ... + 7017337.

Almost surely, 2^{12711611561272} is an apocalyptic number.

It is an amenable number.

12711611561272 is an abundant number, since it is smaller than the sum of its proper divisors (12958566344408).

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

12711611561272 is a wasteful number, since it uses less digits than its factorization.

12711611561272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11908183 (or 11908179 counting only the distinct ones).

The product of its digits is 70560, while the sum is 43.

The spelling of 12711611561272 in words is "twelve trillion, seven hundred eleven billion, six hundred eleven million, five hundred sixty-one thousand, two hundred seventy-two".