11955886668 has 72 divisors (see below), whose sum is σ = 33736038336. Its totient is φ = 3538735200.

The previous prime is 11955886609. The next prime is 11955886693. The reversal of 11955886668 is 86668855911.

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 23 ways as a sum of consecutive naturals, for example, 334038 + ... + 368093.

It is an arithmetic number, because the mean of its divisors is an integer number (468556088).

Almost surely, 2^11955886668 is an apocalyptic number.

11955886668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11955886668 is an abundant number, since it is smaller than the sum of its proper divisors (21780151668).

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

11955886668 is a wasteful number, since it uses less digits than its factorization.

11955886668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702195 (or 702190 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 63.

The spelling of 11955886668 in words is "eleven billion, nine hundred fifty-five million, eight hundred eighty-six thousand, six hundred sixty-eight".