1105717443661 has 2 divisors, whose sum is σ = 1105717443662. Its totient is φ = 1105717443660.

The previous prime is 1105717443653. The next prime is 1105717443671. The reversal of 1105717443661 is 1663447175011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1098712758025 + 7004685636 = 1048195^2 + 83694^2 .

It is a cyclic number.

It is not a de Polignac number, because 1105717443661 - 2³ = 1105717443653 is a prime.

It is a super-2 number, since 2×1105717443661² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105717443601) 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, 552858721830 + 552858721831.

It is an arithmetic number, because the mean of its divisors is an integer number (552858721831).

Almost surely, 2^{1105717443661} is an apocalyptic number.

It is an amenable number.

1105717443661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105717443661 is an equidigital number, since it uses as much as digits as its factorization.

1105717443661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 1105717443661 in words is "one trillion, one hundred five billion, seven hundred seventeen million, four hundred forty-three thousand, six hundred sixty-one".