668465603105 has 16 divisors (see below), whose sum is σ = 849369110400. Its totient is φ = 503300712192.

The previous prime is 668465603093. The next prime is 668465603111. The reversal of 668465603105 is 501306564866.

It is a cyclic number.

It is not a de Polignac number, because 668465603105 - 2⁴ = 668465603089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3518846 + ... + 3703944.

It is an arithmetic number, because the mean of its divisors is an integer number (53085569400).

Almost surely, 2^668465603105 is an apocalyptic number.

It is an amenable number.

668465603105 is a deficient number, since it is larger than the sum of its proper divisors (180903507295).

668465603105 is a wasteful number, since it uses less digits than its factorization.

668465603105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227608.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 668465603105 in words is "six hundred sixty-eight billion, four hundred sixty-five million, six hundred three thousand, one hundred five".