66575127624241 has 2 divisors, whose sum is σ = 66575127624242. Its totient is φ = 66575127624240.

The previous prime is 66575127624197. The next prime is 66575127624251. The reversal of 66575127624241 is 14242672157566.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58461010160400 + 8114117463841 = 7645980^2 + 2848529^2 .

It is a cyclic number.

It is not a de Polignac number, because 66575127624241 - 2⁹ = 66575127623729 is a prime.

It is not a weakly prime, because it can be changed into another prime (66575127624251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33287563812120 + 33287563812121.

It is an arithmetic number, because the mean of its divisors is an integer number (33287563812121).

Almost surely, 2^{66575127624241} is an apocalyptic number.

It is an amenable number.

66575127624241 is a deficient number, since it is larger than the sum of its proper divisors (1).

66575127624241 is an equidigital number, since it uses as much as digits as its factorization.

66575127624241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33868800, while the sum is 58.

The spelling of 66575127624241 in words is "sixty-six trillion, five hundred seventy-five billion, one hundred twenty-seven million, six hundred twenty-four thousand, two hundred forty-one".