11885018618022 has 128 divisors (see below), whose sum is σ = 28001842311168. Its totient is φ = 3326238115200.

The previous prime is 11885018617993. The next prime is 11885018618069. The reversal of 11885018618022 is 22081681058811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6550093 + ... + 8165399.

It is an arithmetic number, because the mean of its divisors is an integer number (218764393056).

Almost surely, 2^{11885018618022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11885018618022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14000921155584).

11885018618022 is an abundant number, since it is smaller than the sum of its proper divisors (16116823693146).

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

11885018618022 is a wasteful number, since it uses less digits than its factorization.

11885018618022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615514.

The product of its (nonzero) digits is 491520, while the sum is 51.

The spelling of 11885018618022 in words is "eleven trillion, eight hundred eighty-five billion, eighteen million, six hundred eighteen thousand, twenty-two".