11618502831056 has 80 divisors (see below), whose sum is σ = 24923748403008. Its totient is φ = 5202874828800.

The previous prime is 11618502831043. The next prime is 11618502831059. The reversal of 11618502831056 is 65013820581611.

11618502831056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11618502831056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11618502831059) 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, 1704296 + ... + 5112888.

Almost surely, 2^{11618502831056} is an apocalyptic number.

11618502831056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is a pronic number, being equal to 3408592×3408593.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11618502831056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12461874201504).

11618502831056 is an abundant number, since it is smaller than the sum of its proper divisors (13305245571952).

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

11618502831056 is a wasteful number, since it uses less digits than its factorization.

11618502831056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408900 (or 3408894 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 11618502831056 in words is "eleven trillion, six hundred eighteen billion, five hundred two million, eight hundred thirty-one thousand, fifty-six".