11816011011816 has 96 divisors (see below), whose sum is σ = 35854480677600. Its totient is φ = 3483836161920.

The previous prime is 11816011011799. The next prime is 11816011011863. The reversal of 11816011011816 is 61811011061811.

It is a happy number.

11816011011816 is a `hidden beast` number, since 1 + 18 + 1 + 601 + 10 + 1 + 18 + 16 = 666.

11816011011816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201581586 + ... + 201640193.

It is an arithmetic number, because the mean of its divisors is an integer number (373484173725).

Almost surely, 2^{11816011011816} is an apocalyptic number.

It is an amenable number.

11816011011816 is an abundant number, since it is smaller than the sum of its proper divisors (24038469665784).

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

11816011011816 is a wasteful number, since it uses less digits than its factorization.

11816011011816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403221839 (or 403221832 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 36.

The spelling of 11816011011816 in words is "eleven trillion, eight hundred sixteen billion, eleven million, eleven thousand, eight hundred sixteen".