670188624016321 has 2 divisors, whose sum is σ = 670188624016322. Its totient is φ = 670188624016320.

The previous prime is 670188624016243. The next prime is 670188624016343. The reversal of 670188624016321 is 123610426881076.

670188624016321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593270268979600 + 76918355036721 = 24357140^2 + 8770311^2 .

It is a cyclic number.

It is not a de Polignac number, because 670188624016321 - 2⁹ = 670188624015809 is a prime.

It is not a weakly prime, because it can be changed into another prime (670188624016421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335094312008160 + 335094312008161.

It is an arithmetic number, because the mean of its divisors is an integer number (335094312008161).

Almost surely, 2^{670188624016321} is an apocalyptic number.

It is an amenable number.

670188624016321 is a deficient number, since it is larger than the sum of its proper divisors (1).

670188624016321 is an equidigital number, since it uses as much as digits as its factorization.

670188624016321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 670188624016321 in words is "six hundred seventy trillion, one hundred eighty-eight billion, six hundred twenty-four million, sixteen thousand, three hundred twenty-one".