668056205441 has 8 divisors (see below), whose sum is σ = 673315363200. Its totient is φ = 662816068992.

The previous prime is 668056205429. The next prime is 668056205459. The reversal of 668056205441 is 144502650866.

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 668056205441 - 2¹⁸ = 668055943297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668056285441) 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, 4684805 + ... + 4825298.

It is an arithmetic number, because the mean of its divisors is an integer number (84164420400).

Almost surely, 2^668056205441 is an apocalyptic number.

It is an amenable number.

668056205441 is a deficient number, since it is larger than the sum of its proper divisors (5259157759).

668056205441 is a wasteful number, since it uses less digits than its factorization.

668056205441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510655.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 668056205441 in words is "six hundred sixty-eight billion, fifty-six million, two hundred five thousand, four hundred forty-one".