668122338110 has 16 divisors (see below), whose sum is σ = 1204919683056. Its totient is φ = 266737940928.

The previous prime is 668122338053. The next prime is 668122338197. The reversal of 668122338110 is 11833221866.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63868799 + ... + 63879258.

It is an arithmetic number, because the mean of its divisors is an integer number (75307480191).

Almost surely, 2^668122338110 is an apocalyptic number.

668122338110 is a deficient number, since it is larger than the sum of its proper divisors (536797344946).

668122338110 is a wasteful number, since it uses less digits than its factorization.

668122338110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127748587.

The product of its (nonzero) digits is 82944, while the sum is 41.

Adding to 668122338110 its reverse (11833221866), we get a palindrome (679955559976).

The spelling of 668122338110 in words is "six hundred sixty-eight billion, one hundred twenty-two million, three hundred thirty-eight thousand, one hundred ten".