11163500243641 has 4 divisors (see below), whose sum is σ = 11163581430772. Its totient is φ = 11163419056512.

The previous prime is 11163500243639. The next prime is 11163500243677. The reversal of 11163500243641 is 14634200536111.

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 7066580156416 + 4096920087225 = 2658304^2 + 2024085^2 .

It is a cyclic number.

It is not a de Polignac number, because 11163500243641 - 2¹ = 11163500243639 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 11163500243641.

It is not an unprimeable number, because it can be changed into a prime (11163500243611) 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, 40386960 + ... + 40662433.

It is an arithmetic number, because the mean of its divisors is an integer number (2790895357693).

Almost surely, 2^{11163500243641} is an apocalyptic number.

It is an amenable number.

11163500243641 is a deficient number, since it is larger than the sum of its proper divisors (81187131).

11163500243641 is an equidigital number, since it uses as much as digits as its factorization.

11163500243641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81187130.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 11163500243641 its reverse (14634200536111), we get a palindrome (25797700779752).

The spelling of 11163500243641 in words is "eleven trillion, one hundred sixty-three billion, five hundred million, two hundred forty-three thousand, six hundred forty-one".