12168946820 has 48 divisors (see below), whose sum is σ = 26004558720. Its totient is φ = 4782633984.

The previous prime is 12168946813. The next prime is 12168946831. The reversal of 12168946820 is 2864986121.

It is a super-2 number, since 2×12168946820² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247097 + ... + 292223.

It is an arithmetic number, because the mean of its divisors is an integer number (541761640).

Almost surely, 2^12168946820 is an apocalyptic number.

12168946820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12168946820 is an abundant number, since it is smaller than the sum of its proper divisors (13835611900).

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

12168946820 is a wasteful number, since it uses less digits than its factorization.

12168946820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45372 (or 45370 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 12168946820 in words is "twelve billion, one hundred sixty-eight million, nine hundred forty-six thousand, eight hundred twenty".