12056871486420 has 72 divisors (see below), whose sum is σ = 36817963345800. Its totient is φ = 3193587429120.

The previous prime is 12056871486391. The next prime is 12056871486431. The reversal of 12056871486420 is 2468417865021.

12056871486420 is a `hidden beast` number, since 1 + 2 + 0 + 56 + 8 + 71 + 486 + 42 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 239461465104 + 11817410021316 = 489348^2 + 3437646^2 .

It is a super-3 number, since 3×12056871486420³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224747071 + ... + 224800710.

It is an arithmetic number, because the mean of its divisors is an integer number (511360602025).

Almost surely, 2^{12056871486420} is an apocalyptic number.

12056871486420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12056871486420 is an abundant number, since it is smaller than the sum of its proper divisors (24761091859380).

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

12056871486420 is a wasteful number, since it uses less digits than its factorization.

12056871486420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449547945 (or 449547940 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 12056871486420 in words is "twelve trillion, fifty-six billion, eight hundred seventy-one million, four hundred eighty-six thousand, four hundred twenty".