11817566084 has 12 divisors (see below), whose sum is σ = 20682245724. Its totient is φ = 5908353024.

The previous prime is 11817566081. The next prime is 11817566107. The reversal of 11817566084 is 48066571811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8397889600 + 3419676484 = 91640^2 + 58478^2 .

It is not an unprimeable number, because it can be changed into a prime (11817566081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41117 + ... + 159140.

It is an arithmetic number, because the mean of its divisors is an integer number (1723520477).

Almost surely, 2^11817566084 is an apocalyptic number.

It is an amenable number.

11817566084 is a deficient number, since it is larger than the sum of its proper divisors (8864679640).

11817566084 is a wasteful number, since it uses less digits than its factorization.

11817566084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215014 (or 215012 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 11817566084 in words is "eleven billion, eight hundred seventeen million, five hundred sixty-six thousand, eighty-four".