12169179904 has 144 divisors (see below), whose sum is σ = 29952514368. Its totient is φ = 4815323136.

The previous prime is 12169179901. The next prime is 12169179931. The reversal of 12169179904 is 40997196121.

It is not an unprimeable number, because it can be changed into a prime (12169179901) 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, 1610824 + ... + 1618360.

It is an arithmetic number, because the mean of its divisors is an integer number (208003572).

Almost surely, 2^12169179904 is an apocalyptic number.

12169179904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12169179904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14976257184).

12169179904 is an abundant number, since it is smaller than the sum of its proper divisors (17783334464).

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

12169179904 is an equidigital number, since it uses as much as digits as its factorization.

12169179904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630 (or 7616 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 12169179904 in words is "twelve billion, one hundred sixty-nine million, one hundred seventy-nine thousand, nine hundred four".