1166116500005 has 4 divisors (see below), whose sum is σ = 1399339800012. Its totient is φ = 932893200000.

The previous prime is 1166116499969. The next prime is 1166116500037. The reversal of 1166116500005 is 5000056116611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 472817138689 + 693299361316 = 687617^2 + 832646^2 .

It is not a de Polignac number, because 1166116500005 - 2²⁶ = 1166049391141 is a prime.

It is a super-2 number, since 2×1166116500005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116611649996 + ... + 116611650005.

It is an arithmetic number, because the mean of its divisors is an integer number (349834950003).

Almost surely, 2^{1166116500005} is an apocalyptic number.

It is an amenable number.

1166116500005 is a deficient number, since it is larger than the sum of its proper divisors (233223300007).

1166116500005 is an equidigital number, since it uses as much as digits as its factorization.

1166116500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233223300006.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 1166116500005 in words is "one trillion, one hundred sixty-six billion, one hundred sixteen million, five hundred thousand, five".