11185021856218 has 32 divisors (see below), whose sum is σ = 19605551247360. Its totient is φ = 4686951999600.

The previous prime is 11185021856213. The next prime is 11185021856279. The reversal of 11185021856218 is 81265812058111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11185021856213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48978508 + ... + 49206343.

It is an arithmetic number, because the mean of its divisors is an integer number (612673476480).

Almost surely, 2^{11185021856218} is an apocalyptic number.

11185021856218 is a deficient number, since it is larger than the sum of its proper divisors (8420529391142).

11185021856218 is a wasteful number, since it uses less digits than its factorization.

11185021856218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98185042.

The product of its (nonzero) digits is 307200, while the sum is 49.

The spelling of 11185021856218 in words is "eleven trillion, one hundred eighty-five billion, twenty-one million, eight hundred fifty-six thousand, two hundred eighteen".