13556228330658 has 64 divisors (see below), whose sum is σ = 29975388291072. Its totient is φ = 4061025337920.

The previous prime is 13556228330639. The next prime is 13556228330663. The reversal of 13556228330658 is 85603382265531.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13556228330598 and 13556228330607.

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, 8979966 + ... + 10380377.

It is an arithmetic number, because the mean of its divisors is an integer number (468365442048).

Almost surely, 2^{13556228330658} is an apocalyptic number.

13556228330658 is an abundant number, since it is smaller than the sum of its proper divisors (16419159960414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13556228330658 is a wasteful number, since it uses less digits than its factorization.

13556228330658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19360599.

The product of its (nonzero) digits is 31104000, while the sum is 57.

The spelling of 13556228330658 in words is "thirteen trillion, five hundred fifty-six billion, two hundred twenty-eight million, three hundred thirty thousand, six hundred fifty-eight".