11918499012144 has 60 divisors (see below), whose sum is σ = 33579104520000. Its totient is φ = 3946169688192.

The previous prime is 11918499012131. The next prime is 11918499012149. The reversal of 11918499012144 is 44121099481911.

11918499012144 is a `hidden beast` number, since 1 + 1 + 9 + 1 + 8 + 499 + 0 + 1 + 2 + 144 = 666.

It is not an unprimeable number, because it can be changed into a prime (11918499012149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277721344 + ... + 277764255.

It is an arithmetic number, because the mean of its divisors is an integer number (559651742000).

Almost surely, 2^{11918499012144} is an apocalyptic number.

It is an amenable number.

11918499012144 is an abundant number, since it is smaller than the sum of its proper divisors (21660605507856).

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

11918499012144 is a wasteful number, since it uses less digits than its factorization.

11918499012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555485762 (or 555485753 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 54.

The spelling of 11918499012144 in words is "eleven trillion, nine hundred eighteen billion, four hundred ninety-nine million, twelve thousand, one hundred forty-four".