12015726064 has 20 divisors (see below), whose sum is σ = 23401099456. Its totient is φ = 5976732672.

The previous prime is 12015726053. The next prime is 12015726127. The reversal of 12015726064 is 46062751021.

12015726064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 1942464 + ... + 1948639.

Almost surely, 2^12015726064 is an apocalyptic number.

It is an amenable number.

12015726064 is a deficient number, since it is larger than the sum of its proper divisors (11385373392).

12015726064 is a wasteful number, since it uses less digits than its factorization.

12015726064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891304 (or 3891298 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 12015726064 in words is "twelve billion, fifteen million, seven hundred twenty-six thousand, sixty-four".