11916222666 has 64 divisors (see below), whose sum is σ = 25248430080. Its totient is φ = 3738873600.

The previous prime is 11916222653. The next prime is 11916222677. The reversal of 11916222666 is 66622261911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21165301 + ... + 21165863.

It is an arithmetic number, because the mean of its divisors is an integer number (394506720).

Almost surely, 2^11916222666 is an apocalyptic number.

11916222666 is an abundant number, since it is smaller than the sum of its proper divisors (13332207414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11916222666 is a wasteful number, since it uses less digits than its factorization.

11916222666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451.

The product of its digits is 93312, while the sum is 42.

The spelling of 11916222666 in words is "eleven billion, nine hundred sixteen million, two hundred twenty-two thousand, six hundred sixty-six".