11116236440538 has 48 divisors (see below), whose sum is σ = 24220462406400. Its totient is φ = 3684643552800.

The previous prime is 11116236440537. The next prime is 11116236440581. The reversal of 11116236440538 is 83504463261111.

It is a happy number.

11116236440538 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 6 + 236 + 4 + 405 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11116236440493 and 11116236440502.

It is not an unprimeable number, because it can be changed into a prime (11116236440537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1172643 + ... + 4858761.

It is an arithmetic number, because the mean of its divisors is an integer number (504592966800).

Almost surely, 2^{11116236440538} is an apocalyptic number.

11116236440538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11116236440538 is an abundant number, since it is smaller than the sum of its proper divisors (13104225965862).

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

11116236440538 is a wasteful number, since it uses less digits than its factorization.

11116236440538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687067 (or 3687064 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 11116236440538 in words is "eleven trillion, one hundred sixteen billion, two hundred thirty-six million, four hundred forty thousand, five hundred thirty-eight".