12215831803560 has 1536 divisors, whose sum is σ = 52069215744000. Its totient is φ = 2410584883200.

The previous prime is 12215831803523. The next prime is 12215831803577. The reversal of 12215831803560 is 6530813851221.

12215831803560 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 5 + 8 + 3 + 1 + 80 + 3 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 8372742111 + ... + 8372743569.

It is an arithmetic number, because the mean of its divisors is an integer number (33899229000).

Almost surely, 2^{12215831803560} is an apocalyptic number.

12215831803560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12215831803560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26034607872000).

12215831803560 is an abundant number, since it is smaller than the sum of its proper divisors (39853383940440).

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

12215831803560 is a wasteful number, since it uses less digits than its factorization.

12215831803560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 12215831803560 in words is "twelve trillion, two hundred fifteen billion, eight hundred thirty-one million, eight hundred three thousand, five hundred sixty".