12162819800 has 48 divisors (see below), whose sum is σ = 28880249760. Its totient is φ = 4761610880.

The previous prime is 12162819797. The next prime is 12162819943. The reversal of 12162819800 is 891826121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637559 + ... + 656358.

It is an arithmetic number, because the mean of its divisors is an integer number (601671870).

Almost surely, 2^12162819800 is an apocalyptic number.

12162819800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12162819800 is an abundant number, since it is smaller than the sum of its proper divisors (16717429960).

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

12162819800 is a wasteful number, since it uses less digits than its factorization.

12162819800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293980 (or 1293971 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 38.

The spelling of 12162819800 in words is "twelve billion, one hundred sixty-two million, eight hundred nineteen thousand, eight hundred".