11116335255561 has 48 divisors (see below), whose sum is σ = 16484888714112. Its totient is φ = 7216017580800.

The previous prime is 11116335255523. The next prime is 11116335255587. The reversal of 11116335255561 is 16555253361111.

11116335255561 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 6 + 3 + 35 + 2 + 55 + 561 = 666.

It is not a de Polignac number, because 11116335255561 - 2⁹ = 11116335255049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11116335250561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162312021 + ... + 162380493.

It is an arithmetic number, because the mean of its divisors is an integer number (343435181544).

Almost surely, 2^{11116335255561} is an apocalyptic number.

It is an amenable number.

11116335255561 is a deficient number, since it is larger than the sum of its proper divisors (5368553458551).

11116335255561 is a wasteful number, since it uses less digits than its factorization.

11116335255561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71694 (or 71691 counting only the distinct ones).

The product of its digits is 405000, while the sum is 45.

The spelling of 11116335255561 in words is "eleven trillion, one hundred sixteen billion, three hundred thirty-five million, two hundred fifty-five thousand, five hundred sixty-one".