12319655220 has 54 divisors (see below), whose sum is σ = 37374138438. Its totient is φ = 3284844288.

The previous prime is 12319655203. The next prime is 12319655269. The reversal of 12319655220 is 2255691321.

It is a happy number.

12319655220 is a `hidden beast` number, since 12 + 3 + 1 + 96 + 552 + 2 + 0 = 666.

12319655220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3880293264 + 8439361956 = 62292^2 + 91866^2 .

It is a super-3 number, since 3×12319655220³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 1485004 + ... + 1493276.

Almost surely, 2^12319655220 is an apocalyptic number.

12319655220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12319655220 is an abundant number, since it is smaller than the sum of its proper divisors (25054483218).

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

12319655220 is an frugal number, since it uses more digits than its factorization.

12319655220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16561 (or 8283 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 12319655220 in words is "twelve billion, three hundred nineteen million, six hundred fifty-five thousand, two hundred twenty".