13534021311255 has 80 divisors (see below), whose sum is σ = 25384798669824. Its totient is φ = 6885497741760.

The previous prime is 13534021311193. The next prime is 13534021311277. The reversal of 13534021311255 is 55211312043531.

It is a happy number.

13534021311255 is a `hidden beast` number, since 1 + 3 + 53 + 40 + 2 + 1 + 311 + 255 = 666.

It is not a de Polignac number, because 13534021311255 - 2³³ = 13525431376663 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1439140 + ... + 5398070.

Almost surely, 2^{13534021311255} is an apocalyptic number.

13534021311255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13534021311255 is a deficient number, since it is larger than the sum of its proper divisors (11850777358569).

13534021311255 is a wasteful number, since it uses less digits than its factorization.

13534021311255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959338 (or 3959329 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 13534021311255 its reverse (55211312043531), we get a palindrome (68745333354786).

The spelling of 13534021311255 in words is "thirteen trillion, five hundred thirty-four billion, twenty-one million, three hundred eleven thousand, two hundred fifty-five".