135523433044455 has 16 divisors (see below), whose sum is σ = 219891542068224. Its totient is φ = 71261147891360.

The previous prime is 135523433044429. The next prime is 135523433044511. The reversal of 135523433044455 is 554440334325531.

It is not a de Polignac number, because 135523433044455 - 2¹⁰ = 135523433043431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135523433044398 and 135523433044407.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 63626023839 + ... + 63626025968.

It is an arithmetic number, because the mean of its divisors is an integer number (13743221379264).

Almost surely, 2^{135523433044455} is an apocalyptic number.

135523433044455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135523433044455 is a deficient number, since it is larger than the sum of its proper divisors (84368109023769).

135523433044455 is a wasteful number, since it uses less digits than its factorization.

135523433044455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127252049886.

The product of its (nonzero) digits is 25920000, while the sum is 51.

Adding to 135523433044455 its reverse (554440334325531), we get a palindrome (689963767369986).

The spelling of 135523433044455 in words is "one hundred thirty-five trillion, five hundred twenty-three billion, four hundred thirty-three million, forty-four thousand, four hundred fifty-five".