11173427155 has 16 divisors (see below), whose sum is σ = 14643014400. Its totient is φ = 8117249760.

The previous prime is 11173427143. The next prime is 11173427201. The reversal of 11173427155 is 55172437111.

It is not a de Polignac number, because 11173427155 - 2⁹ = 11173426643 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59985 + ... + 161074.

It is an arithmetic number, because the mean of its divisors is an integer number (915188400).

Almost surely, 2^11173427155 is an apocalyptic number.

11173427155 is a deficient number, since it is larger than the sum of its proper divisors (3469587245).

11173427155 is a wasteful number, since it uses less digits than its factorization.

11173427155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221994.

The product of its digits is 29400, while the sum is 37.

The spelling of 11173427155 in words is "eleven billion, one hundred seventy-three million, four hundred twenty-seven thousand, one hundred fifty-five".