668055382116 has 96 divisors (see below), whose sum is σ = 1617356982528. Its totient is φ = 214448209920.

The previous prime is 668055382091. The next prime is 668055382171. The reversal of 668055382116 is 611283550866.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37268836 + ... + 37286756.

It is an arithmetic number, because the mean of its divisors is an integer number (16847468568).

Almost surely, 2^668055382116 is an apocalyptic number.

It is an amenable number.

668055382116 is an abundant number, since it is smaller than the sum of its proper divisors (949301600412).

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

668055382116 is a wasteful number, since it uses less digits than its factorization.

668055382116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18821 (or 18819 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 668055382116 in words is "six hundred sixty-eight billion, fifty-five million, three hundred eighty-two thousand, one hundred sixteen".