12344566920 has 128 divisors (see below), whose sum is σ = 43224883200. Its totient is φ = 2761572096.

The previous prime is 12344566901. The next prime is 12344566937. The reversal of 12344566920 is 2966544321.

12344566920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 116860 + ... + 195819.

It is an arithmetic number, because the mean of its divisors is an integer number (337694400).

Almost surely, 2^12344566920 is an apocalyptic number.

12344566920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12344566920 is an abundant number, since it is smaller than the sum of its proper divisors (30880316280).

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

12344566920 is a wasteful number, since it uses less digits than its factorization.

12344566920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312747 (or 312743 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 12344566920 in words is "twelve billion, three hundred forty-four million, five hundred sixty-six thousand, nine hundred twenty".