135336125255565 has 128 divisors (see below), whose sum is σ = 249621208704000. Its totient is φ = 62392613437440.

The previous prime is 135336125255549. The next prime is 135336125255587. The reversal of 135336125255565 is 565552521633531.

It is not a de Polignac number, because 135336125255565 - 2⁴ = 135336125255549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 110879805 + ... + 112093725.

It is an arithmetic number, because the mean of its divisors is an integer number (1950165693000).

Almost surely, 2^{135336125255565} is an apocalyptic number.

135336125255565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135336125255565 is a deficient number, since it is larger than the sum of its proper divisors (114285083448435).

135336125255565 is a wasteful number, since it uses less digits than its factorization.

135336125255565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214184 (or 1214158 counting only the distinct ones).

The product of its digits is 60750000, while the sum is 57.

The spelling of 135336125255565 in words is "one hundred thirty-five trillion, three hundred thirty-six billion, one hundred twenty-five million, two hundred fifty-five thousand, five hundred sixty-five".