12701555085517 has 4 divisors (see below), whose sum is σ = 12832498952476. Its totient is φ = 12570611218560.

The previous prime is 12701555085449. The next prime is 12701555085551. The reversal of 12701555085517 is 71558055510721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10262354587081 + 2439200498436 = 3203491^2 + 1561794^2 .

It is a cyclic number.

It is not a de Polignac number, because 12701555085517 - 2³⁹ = 12151799271629 is a prime.

It is a super-2 number, since 2×12701555085517² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12701555085577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65471933334 + ... + 65471933527.

It is an arithmetic number, because the mean of its divisors is an integer number (3208124738119).

Almost surely, 2^{12701555085517} is an apocalyptic number.

It is an amenable number.

12701555085517 is a deficient number, since it is larger than the sum of its proper divisors (130943866959).

12701555085517 is an equidigital number, since it uses as much as digits as its factorization.

12701555085517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130943866958.

The product of its (nonzero) digits is 2450000, while the sum is 52.

The spelling of 12701555085517 in words is "twelve trillion, seven hundred one billion, five hundred fifty-five million, eighty-five thousand, five hundred seventeen".