1166550555117 has 8 divisors (see below), whose sum is σ = 1575089357440. Its totient is φ = 767856061440.

The previous prime is 1166550555091. The next prime is 1166550555133. The reversal of 1166550555117 is 7115550556611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1166550555117 - 2⁸ = 1166550554861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166550455117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2461076884 + ... + 2461077357.

It is an arithmetic number, because the mean of its divisors is an integer number (196886169680).

Almost surely, 2^{1166550555117} is an apocalyptic number.

It is an amenable number.

1166550555117 is a deficient number, since it is larger than the sum of its proper divisors (408538802323).

1166550555117 is an equidigital number, since it uses as much as digits as its factorization.

1166550555117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4922154323.

The product of its (nonzero) digits is 787500, while the sum is 48.

The spelling of 1166550555117 in words is "one trillion, one hundred sixty-six billion, five hundred fifty million, five hundred fifty-five thousand, one hundred seventeen".