12164171232 has 24 divisors (see below), whose sum is σ = 31930949736. Its totient is φ = 4054723712.

The previous prime is 12164171221. The next prime is 12164171233. The reversal of 12164171232 is 23217146121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12164171232² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12164171232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164171233) 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, 63354963 + ... + 63355154.

It is an arithmetic number, because the mean of its divisors is an integer number (1330456239).

Almost surely, 2^12164171232 is an apocalyptic number.

12164171232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12164171232 is an abundant number, since it is smaller than the sum of its proper divisors (19766778504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12164171232 is a wasteful number, since it uses less digits than its factorization.

12164171232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126710130 (or 126710122 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The spelling of 12164171232 in words is "twelve billion, one hundred sixty-four million, one hundred seventy-one thousand, two hundred thirty-two".