11866706818 has 16 divisors (see below), whose sum is σ = 18269086176. Its totient is φ = 5777845920.

The previous prime is 11866706801. The next prime is 11866706821. The reversal of 11866706818 is 81860766811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179971 + ... + 236902.

It is an arithmetic number, because the mean of its divisors is an integer number (1141817886).

Almost surely, 2^11866706818 is an apocalyptic number.

11866706818 is a deficient number, since it is larger than the sum of its proper divisors (6402379358).

11866706818 is a wasteful number, since it uses less digits than its factorization.

11866706818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417249.

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 11866706818 in words is "eleven billion, eight hundred sixty-six million, seven hundred six thousand, eight hundred eighteen".