191116082273 has 4 divisors (see below), whose sum is σ = 191120435220. Its totient is φ = 191111729328.

The previous prime is 191116082243. The next prime is 191116082291. The reversal of 191116082273 is 372280611191.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 372280611191 = 209743 ⋅1774937.

It can be written as a sum of positive squares in 2 ways, for example, as 182382805969 + 8733276304 = 427063^2 + 93452^2 .

It is a cyclic number.

It is not a de Polignac number, because 191116082273 - 2³⁶ = 122396605537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 191116082273.

It is not an unprimeable number, because it can be changed into a prime (191116082243) 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, 2109938 + ... + 2198651.

It is an arithmetic number, because the mean of its divisors is an integer number (47780108805).

Almost surely, 2^191116082273 is an apocalyptic number.

It is an amenable number.

191116082273 is a deficient number, since it is larger than the sum of its proper divisors (4352947).

191116082273 is an equidigital number, since it uses as much as digits as its factorization.

191116082273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352946.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 191116082273 in words is "one hundred ninety-one billion, one hundred sixteen million, eighty-two thousand, two hundred seventy-three".