75666346222241 has 2 divisors, whose sum is σ = 75666346222242. Its totient is φ = 75666346222240.

The previous prime is 75666346222237. The next prime is 75666346222249. The reversal of 75666346222241 is 14222264366657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75651289950625 + 15056271616 = 8697775^2 + 122704^2 .

It is a cyclic number.

It is not a de Polignac number, because 75666346222241 - 2² = 75666346222237 is a prime.

It is not a weakly prime, because it can be changed into another prime (75666346222249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37833173111120 + 37833173111121.

It is an arithmetic number, because the mean of its divisors is an integer number (37833173111121).

Almost surely, 2^{75666346222241} is an apocalyptic number.

It is an amenable number.

75666346222241 is a deficient number, since it is larger than the sum of its proper divisors (1).

75666346222241 is an equidigital number, since it uses as much as digits as its factorization.

75666346222241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 56.

The spelling of 75666346222241 in words is "seventy-five trillion, six hundred sixty-six billion, three hundred forty-six million, two hundred twenty-two thousand, two hundred forty-one".