11958669163 has 4 divisors (see below), whose sum is σ = 13667050480. Its totient is φ = 10250287848.

The previous prime is 11958669157. The next prime is 11958669221. The reversal of 11958669163 is 36196685911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36196685911 = 33149 ⋅1091939.

It is a cyclic number.

It is not a de Polignac number, because 11958669163 - 2⁹ = 11958668651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11958669563) 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, 854190648 + ... + 854190661.

It is an arithmetic number, because the mean of its divisors is an integer number (3416762620).

Almost surely, 2^11958669163 is an apocalyptic number.

11958669163 is a deficient number, since it is larger than the sum of its proper divisors (1708381317).

11958669163 is an equidigital number, since it uses as much as digits as its factorization.

11958669163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708381316.

The product of its digits is 2099520, while the sum is 55.

The spelling of 11958669163 in words is "eleven billion, nine hundred fifty-eight million, six hundred sixty-nine thousand, one hundred sixty-three".