12056137056 has 144 divisors (see below), whose sum is σ = 37009496160. Its totient is φ = 3711375360.

The previous prime is 12056137021. The next prime is 12056137063. The reversal of 12056137056 is 65073165021.

12056137056 is a `hidden beast` number, since 1 + 20 + 561 + 3 + 70 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a self number, because there is not a number n which added to its sum of digits gives 12056137056.

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, 160716 + ... + 223476.

It is an arithmetic number, because the mean of its divisors is an integer number (257010390).

Almost surely, 2^12056137056 is an apocalyptic number.

12056137056 is a gapful number since it is divisible by the number (16) 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 12056137056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18504748080).

12056137056 is an abundant number, since it is smaller than the sum of its proper divisors (24953359104).

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

12056137056 is a wasteful number, since it uses less digits than its factorization.

12056137056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62829 (or 62818 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 12056137056 in words is "twelve billion, fifty-six million, one hundred thirty-seven thousand, fifty-six".