12155763171 has 32 divisors (see below), whose sum is σ = 17199440640. Its totient is φ = 7615119744.

The previous prime is 12155763161. The next prime is 12155763211. The reversal of 12155763171 is 17136755121.

12155763171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12155763171 - 2⁷ = 12155763043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12155763131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5156125 + ... + 5158481.

It is an arithmetic number, because the mean of its divisors is an integer number (537482520).

Almost surely, 2^12155763171 is an apocalyptic number.

12155763171 is a deficient number, since it is larger than the sum of its proper divisors (5043677469).

12155763171 is a wasteful number, since it uses less digits than its factorization.

12155763171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075.

The product of its digits is 44100, while the sum is 39.

The spelling of 12155763171 in words is "twelve billion, one hundred fifty-five million, seven hundred sixty-three thousand, one hundred seventy-one".