12198639180 has 144 divisors (see below), whose sum is σ = 42789206880. Its totient is φ = 2573770752.

The previous prime is 12198639163. The next prime is 12198639197. The reversal of 12198639180 is 8193689121.

12198639180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12198639163) and next prime (12198639197).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 121365 + ... + 197804.

It is an arithmetic number, because the mean of its divisors is an integer number (297147270).

Almost surely, 2^12198639180 is an apocalyptic number.

12198639180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12198639180 is an abundant number, since it is smaller than the sum of its proper divisors (30590567700).

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

12198639180 is a wasteful number, since it uses less digits than its factorization.

12198639180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319208 (or 319199 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 12198639180 in words is "twelve billion, one hundred ninety-eight million, six hundred thirty-nine thousand, one hundred eighty".