1171660633243 has 2 divisors, whose sum is σ = 1171660633244. Its totient is φ = 1171660633242.

The previous prime is 1171660633181. The next prime is 1171660633307. The reversal of 1171660633243 is 3423360661711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1171660633243 - 2⁹ = 1171660632731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1171660633243.

It is not a weakly prime, because it can be changed into another prime (1171660633643) 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, 585830316621 + 585830316622.

It is an arithmetic number, because the mean of its divisors is an integer number (585830316622).

Almost surely, 2^{1171660633243} is an apocalyptic number.

1171660633243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171660633243 is an equidigital number, since it uses as much as digits as its factorization.

1171660633243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 1171660633243 in words is "one trillion, one hundred seventy-one billion, six hundred sixty million, six hundred thirty-three thousand, two hundred forty-three".