11172948159 has 4 divisors (see below), whose sum is σ = 14897264216. Its totient is φ = 7448632104.

The previous prime is 11172948133. The next prime is 11172948187. The reversal of 11172948159 is 95184927111.

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

It is not a de Polignac number, because 11172948159 - 2¹² = 11172944063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11172948859) 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, 1862158024 + ... + 1862158029.

It is an arithmetic number, because the mean of its divisors is an integer number (3724316054).

Almost surely, 2^11172948159 is an apocalyptic number.

11172948159 is a deficient number, since it is larger than the sum of its proper divisors (3724316057).

11172948159 is an equidigital number, since it uses as much as digits as its factorization.

11172948159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724316056.

The product of its digits is 181440, while the sum is 48.

The spelling of 11172948159 in words is "eleven billion, one hundred seventy-two million, nine hundred forty-eight thousand, one hundred fifty-nine".