668122338055 has 8 divisors (see below), whose sum is σ = 805247884800. Its totient is φ = 532163817696.

The previous prime is 668122338053. The next prime is 668122338197. The reversal of 668122338055 is 550833221866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 668122338055 - 2¹ = 668122338053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668122338053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291755335 + ... + 291757624.

It is an arithmetic number, because the mean of its divisors is an integer number (100655985600).

Almost surely, 2^668122338055 is an apocalyptic number.

668122338055 is a deficient number, since it is larger than the sum of its proper divisors (137125546745).

668122338055 is a wasteful number, since it uses less digits than its factorization.

668122338055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583513193.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 668122338055 in words is "six hundred sixty-eight billion, one hundred twenty-two million, three hundred thirty-eight thousand, fifty-five".