It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
11777778966 is an admirable number.
It is a congruent number.
Almost surely, 211777778966 is an apocalyptic number.
11777778966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11777778966 is a wasteful number, since it uses less digits than its factorization.
11777778966 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1962963166.
The spelling of 11777778966 in words is "eleven billion, seven hundred seventy-seven million, seven hundred seventy-eight thousand, nine hundred sixty-six".