11918029522216 has 8 divisors (see below), whose sum is σ = 22346305354170. Its totient is φ = 5959014761104.

The previous prime is 11918029522181. The next prime is 11918029522271. The reversal of 11918029522216 is 61222592081911.

It can be written as a sum of positive squares in only one way, i.e., 8478288062500 + 3439741459716 = 2911750^2 + 1854654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 11918029522216.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744876845131 + ... + 744876845146.

Almost surely, 2^{11918029522216} is an apocalyptic number.

It is an amenable number.

11918029522216 is a deficient number, since it is larger than the sum of its proper divisors (10428275831954).

11918029522216 is a wasteful number, since it uses less digits than its factorization.

11918029522216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489753690283 (or 1489753690279 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 11918029522216 in words is "eleven trillion, nine hundred eighteen billion, twenty-nine million, five hundred twenty-two thousand, two hundred sixteen".