135657356547885 has 8 divisors (see below), whose sum is σ = 217051770476640. Its totient is φ = 72350590158864.

The previous prime is 135657356547851. The next prime is 135657356547887. The reversal of 135657356547885 is 588745653756531.

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

It is not a de Polignac number, because 135657356547885 - 2¹⁰ = 135657356546861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135657356547885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135657356547887) 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 7 ways as a sum of consecutive naturals, for example, 4521911884915 + ... + 4521911884944.

It is an arithmetic number, because the mean of its divisors is an integer number (27131471309580).

Almost surely, 2^{135657356547885} is an apocalyptic number.

135657356547885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135657356547885 is a deficient number, since it is larger than the sum of its proper divisors (81394413928755).

135657356547885 is an equidigital number, since it uses as much as digits as its factorization.

135657356547885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043823769867.

The product of its digits is 12700800000, while the sum is 78.

The spelling of 135657356547885 in words is "one hundred thirty-five trillion, six hundred fifty-seven billion, three hundred fifty-six million, five hundred forty-seven thousand, eight hundred eighty-five".