11157108171 has 16 divisors (see below), whose sum is σ = 16230385920. Its totient is φ = 6761106720.

The previous prime is 11157108163. The next prime is 11157108187. The reversal of 11157108171 is 17180175111.

It is a happy number.

It is not a de Polignac number, because 11157108171 - 2³ = 11157108163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11157108371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421401 + ... + 447093.

It is an arithmetic number, because the mean of its divisors is an integer number (1014399120).

Almost surely, 2^11157108171 is an apocalyptic number.

11157108171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11157108171 is a deficient number, since it is larger than the sum of its proper divisors (5073277749).

11157108171 is a wasteful number, since it uses less digits than its factorization.

11157108171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38866.

The product of its (nonzero) digits is 1960, while the sum is 33.

The spelling of 11157108171 in words is "eleven billion, one hundred fifty-seven million, one hundred eight thousand, one hundred seventy-one".