96666637249657 has 2 divisors, whose sum is σ = 96666637249658. Its totient is φ = 96666637249656.

The previous prime is 96666637249591. The next prime is 96666637249661. The reversal of 96666637249657 is 75694273666669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90196883817616 + 6469753432041 = 9497204^2 + 2543571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-96666637249657 is a prime.

It is not a weakly prime, because it can be changed into another prime (96666637249697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48333318624828 + 48333318624829.

It is an arithmetic number, because the mean of its divisors is an integer number (48333318624829).

Almost surely, 2^{96666637249657} is an apocalyptic number.

It is an amenable number.

96666637249657 is a deficient number, since it is larger than the sum of its proper divisors (1).

96666637249657 is an equidigital number, since it uses as much as digits as its factorization.

96666637249657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22221319680, while the sum is 82.

The spelling of 96666637249657 in words is "ninety-six trillion, six hundred sixty-six billion, six hundred thirty-seven million, two hundred forty-nine thousand, six hundred fifty-seven".