13126410666655 has 32 divisors (see below), whose sum is σ = 18505775066688. Its totient is φ = 8811997824000.

The previous prime is 13126410666653. The next prime is 13126410666661. The reversal of 13126410666655 is 55666601462131.

It is a happy number.

It is not a de Polignac number, because 13126410666655 - 2¹ = 13126410666653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13126410666653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68341755 + ... + 68533555.

It is an arithmetic number, because the mean of its divisors is an integer number (578305470834).

Almost surely, 2^{13126410666655} is an apocalyptic number.

13126410666655 is a deficient number, since it is larger than the sum of its proper divisors (5379364400033).

13126410666655 is a wasteful number, since it uses less digits than its factorization.

13126410666655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287547.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 13126410666655 in words is "thirteen trillion, one hundred twenty-six billion, four hundred ten million, six hundred sixty-six thousand, six hundred fifty-five".