1166601055559 has 2 divisors, whose sum is σ = 1166601055560. Its totient is φ = 1166601055558.

The previous prime is 1166601055537. The next prime is 1166601055577. The reversal of 1166601055559 is 9555501066611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166601055559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166601055579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583300527779 + 583300527780.

It is an arithmetic number, because the mean of its divisors is an integer number (583300527780).

Almost surely, 2^{1166601055559} is an apocalyptic number.

1166601055559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166601055559 is an equidigital number, since it uses as much as digits as its factorization.

1166601055559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215000, while the sum is 50.

The spelling of 1166601055559 in words is "one trillion, one hundred sixty-six billion, six hundred one million, fifty-five thousand, five hundred fifty-nine".