13128757164535 has 8 divisors (see below), whose sum is σ = 15764300097840. Its totient is φ = 10496478064704.

The previous prime is 13128757164533. The next prime is 13128757164541. The reversal of 13128757164535 is 53546175782131.

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 13128757164535 - 2¹ = 13128757164533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13128757164535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13128757164533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815949517 + ... + 815965606.

It is an arithmetic number, because the mean of its divisors is an integer number (1970537512230).

Almost surely, 2^{13128757164535} is an apocalyptic number.

13128757164535 is a deficient number, since it is larger than the sum of its proper divisors (2635542933305).

13128757164535 is a wasteful number, since it uses less digits than its factorization.

13128757164535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631916737.

The product of its digits is 21168000, while the sum is 58.

The spelling of 13128757164535 in words is "thirteen trillion, one hundred twenty-eight billion, seven hundred fifty-seven million, one hundred sixty-four thousand, five hundred thirty-five".