11663563164245 has 4 divisors (see below), whose sum is σ = 13996275797100. Its totient is φ = 9330850531392.

The previous prime is 11663563164173. The next prime is 11663563164247. The reversal of 11663563164245 is 54246136536611.

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 7459841275441 + 4203721888804 = 2731271^2 + 2050298^2 .

It is a cyclic number.

It is not a de Polignac number, because 11663563164245 - 2¹⁰ = 11663563163221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663563164247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166356316420 + ... + 1166356316429.

It is an arithmetic number, because the mean of its divisors is an integer number (3499068949275).

Almost surely, 2^{11663563164245} is an apocalyptic number.

It is an amenable number.

11663563164245 is a deficient number, since it is larger than the sum of its proper divisors (2332712632855).

11663563164245 is an equidigital number, since it uses as much as digits as its factorization.

11663563164245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332712632854.

The product of its digits is 9331200, while the sum is 53.

The spelling of 11663563164245 in words is "eleven trillion, six hundred sixty-three billion, five hundred sixty-three million, one hundred sixty-four thousand, two hundred forty-five".