12013651056 has 160 divisors (see below), whose sum is σ = 35726284800. Its totient is φ = 3440413440.

The previous prime is 12013651049. The next prime is 12013651073. The reversal of 12013651056 is 65015631021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4884355 + ... + 4886813.

It is an arithmetic number, because the mean of its divisors is an integer number (223289280).

Almost surely, 2^12013651056 is an apocalyptic number.

12013651056 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 12013651056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17863142400).

12013651056 is an abundant number, since it is smaller than the sum of its proper divisors (23712633744).

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

12013651056 is a wasteful number, since it uses less digits than its factorization.

12013651056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2987 (or 2981 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 12013651056 in words is "twelve billion, thirteen million, six hundred fifty-one thousand, fifty-six".