13221870810558 has 16 divisors (see below), whose sum is σ = 26471489525136. Its totient is φ = 4402665619520.

The previous prime is 13221870810557. The next prime is 13221870810697. The reversal of 13221870810558 is 85501807812231.

It is a super-3 number, since 3×13221870810558³ (a number of 40 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13221870810558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221870810557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1156156473 + ... + 1156167908.

It is an arithmetic number, because the mean of its divisors is an integer number (1654468095321).

Almost surely, 2^{13221870810558} is an apocalyptic number.

13221870810558 is an abundant number, since it is smaller than the sum of its proper divisors (13249618714578).

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

13221870810558 is a wasteful number, since it uses less digits than its factorization.

13221870810558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312325339.

The product of its (nonzero) digits is 1075200, while the sum is 51.

The spelling of 13221870810558 in words is "thirteen trillion, two hundred twenty-one billion, eight hundred seventy million, eight hundred ten thousand, five hundred fifty-eight".