15564125312 has 24 divisors (see below), whose sum is σ = 31009468035. Its totient is φ = 7781356928.

The previous prime is 15564125249. The next prime is 15564125321. The reversal of 15564125312 is 21352146551.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

15564125312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7782062656 + 7782062656 = 88216^2 + 88216^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=88216.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 1405943 + ... + 1416969.

Almost surely, 2^15564125312 is an apocalyptic number.

It is an amenable number.

15564125312 is a deficient number, since it is larger than the sum of its proper divisors (15445342723).

15564125312 is an frugal number, since it uses more digits than its factorization.

15564125312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22068 (or 11029 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The spelling of 15564125312 in words is "fifteen billion, five hundred sixty-four million, one hundred twenty-five thousand, three hundred twelve".