75666346222757 has 2 divisors, whose sum is σ = 75666346222758. Its totient is φ = 75666346222756.

The previous prime is 75666346222741. The next prime is 75666346222799. The reversal of 75666346222757 is 75722264366657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47752094063521 + 27914252159236 = 6910289^2 + 5283394^2 .

It is a cyclic number.

It is not a de Polignac number, because 75666346222757 - 2⁴ = 75666346222741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75666346222457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37833173111378 + 37833173111379.

It is an arithmetic number, because the mean of its divisors is an integer number (37833173111379).

Almost surely, 2^{75666346222757} is an apocalyptic number.

It is an amenable number.

75666346222757 is a deficient number, since it is larger than the sum of its proper divisors (1).

75666346222757 is an equidigital number, since it uses as much as digits as its factorization.

75666346222757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1066867200, while the sum is 68.

The spelling of 75666346222757 in words is "seventy-five trillion, six hundred sixty-six billion, three hundred forty-six million, two hundred twenty-two thousand, seven hundred fifty-seven".