13218193306355 has 32 divisors (see below), whose sum is σ = 16766815060800. Its totient is φ = 9975963013632.

The previous prime is 13218193306337. The next prime is 13218193306433. The reversal of 13218193306355 is 55360339181231.

It is not a de Polignac number, because 13218193306355 - 2⁸ = 13218193306099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35359361 + ... + 35731229.

It is an arithmetic number, because the mean of its divisors is an integer number (523962970650).

Almost surely, 2^{13218193306355} is an apocalyptic number.

13218193306355 is a deficient number, since it is larger than the sum of its proper divisors (3548621754445).

13218193306355 is a wasteful number, since it uses less digits than its factorization.

13218193306355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373463.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 13218193306355 in words is "thirteen trillion, two hundred eighteen billion, one hundred ninety-three million, three hundred six thousand, three hundred fifty-five".