1165036350243 has 4 divisors (see below), whose sum is σ = 1553381800328. Its totient is φ = 776690900160.

The previous prime is 1165036350241. The next prime is 1165036350253. The reversal of 1165036350243 is 3420536305611.

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

It is not a de Polignac number, because 1165036350243 - 2¹ = 1165036350241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165036350241) 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, 194172725038 + ... + 194172725043.

It is an arithmetic number, because the mean of its divisors is an integer number (388345450082).

Almost surely, 2^{1165036350243} is an apocalyptic number.

1165036350243 is a deficient number, since it is larger than the sum of its proper divisors (388345450085).

1165036350243 is an equidigital number, since it uses as much as digits as its factorization.

1165036350243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388345450084.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 1165036350243 in words is "one trillion, one hundred sixty-five billion, thirty-six million, three hundred fifty thousand, two hundred forty-three".