12757660726655 has 8 divisors (see below), whose sum is σ = 16486823092992. Its totient is φ = 9421041767328.

The previous prime is 12757660726651. The next prime is 12757660726691. The reversal of 12757660726655 is 55662706675721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12757660726655 - 2² = 12757660726651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65), and also a Moran number because the ratio is a prime number: 196271703487 = 12757660726655 / (1 + 2 + 7 + 5 + 7 + 6 + 6 + 0 + 7 + 2 + 6 + 6 + 5 + 5).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12757660726591 and 12757660726600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12757660726651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98135851679 + ... + 98135851808.

It is an arithmetic number, because the mean of its divisors is an integer number (2060852886624).

Almost surely, 2^{12757660726655} is an apocalyptic number.

12757660726655 is a deficient number, since it is larger than the sum of its proper divisors (3729162366337).

12757660726655 is a wasteful number, since it uses less digits than its factorization.

12757660726655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196271703505.

The product of its (nonzero) digits is 222264000, while the sum is 65.

The spelling of 12757660726655 in words is "twelve trillion, seven hundred fifty-seven billion, six hundred sixty million, seven hundred twenty-six thousand, six hundred fifty-five".