606243721148369 has 2 divisors, whose sum is σ = 606243721148370. Its totient is φ = 606243721148368.

The previous prime is 606243721148311. The next prime is 606243721148423. The reversal of 606243721148369 is 963841127342606.

It is a happy number.

606243721148369 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., 586512250540225 + 19731470608144 = 24218015^2 + 4442012^2 .

It is a cyclic number.

It is not a de Polignac number, because 606243721148369 - 2¹⁶ = 606243721082833 is a prime.

It is a super-2 number, since 2×606243721148369² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (606243721138369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303121860574184 + 303121860574185.

It is an arithmetic number, because the mean of its divisors is an integer number (303121860574185).

Almost surely, 2^{606243721148369} is an apocalyptic number.

It is an amenable number.

606243721148369 is a deficient number, since it is larger than the sum of its proper divisors (1).

606243721148369 is an equidigital number, since it uses as much as digits as its factorization.

606243721148369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62705664, while the sum is 62.

The spelling of 606243721148369 in words is "six hundred six trillion, two hundred forty-three billion, seven hundred twenty-one million, one hundred forty-eight thousand, three hundred sixty-nine".