662018581241 has 2 divisors, whose sum is σ = 662018581242. Its totient is φ = 662018581240.

The previous prime is 662018581153. The next prime is 662018581243. The reversal of 662018581241 is 142185810266.

662018581241 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., 626638476025 + 35380105216 = 791605^2 + 188096^2 .

It is a cyclic number.

It is not a de Polignac number, because 662018581241 - 2¹⁰ = 662018580217 is a prime.

Together with 662018581243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 662018581192 and 662018581201.

It is not a weakly prime, because it can be changed into another prime (662018581243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331009290620 + 331009290621.

It is an arithmetic number, because the mean of its divisors is an integer number (331009290621).

Almost surely, 2^662018581241 is an apocalyptic number.

It is an amenable number.

662018581241 is a deficient number, since it is larger than the sum of its proper divisors (1).

662018581241 is an equidigital number, since it uses as much as digits as its factorization.

662018581241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 662018581241 in words is "six hundred sixty-two billion, eighteen million, five hundred eighty-one thousand, two hundred forty-one".