11817801116 has 12 divisors (see below), whose sum is σ = 22561256760. Its totient is φ = 5371727760.

The previous prime is 11817801103. The next prime is 11817801157. The reversal of 11817801116 is 61110871811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134293151 + ... + 134293238.

It is an arithmetic number, because the mean of its divisors is an integer number (1880104730).

Almost surely, 2^11817801116 is an apocalyptic number.

It is an amenable number.

11817801116 is a deficient number, since it is larger than the sum of its proper divisors (10743455644).

11817801116 is a wasteful number, since it uses less digits than its factorization.

11817801116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268586404 (or 268586402 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 35.

The spelling of 11817801116 in words is "eleven billion, eight hundred seventeen million, eight hundred one thousand, one hundred sixteen".