1166116500547 has 4 divisors (see below), whose sum is σ = 1194558366456. Its totient is φ = 1137674634640.

The previous prime is 1166116500487. The next prime is 1166116500587. The reversal of 1166116500547 is 7450056116611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1166116500547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166116500587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14220932893 + ... + 14220932974.

It is an arithmetic number, because the mean of its divisors is an integer number (298639591614).

Almost surely, 2^{1166116500547} is an apocalyptic number.

1166116500547 is a deficient number, since it is larger than the sum of its proper divisors (28441865909).

1166116500547 is an equidigital number, since it uses as much as digits as its factorization.

1166116500547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28441865908.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 1166116500547 in words is "one trillion, one hundred sixty-six billion, one hundred sixteen million, five hundred thousand, five hundred forty-seven".