12566317040 has 40 divisors (see below), whose sum is σ = 30935319120. Its totient is φ = 4730848256.

The previous prime is 12566317039. The next prime is 12566317069. The reversal of 12566317040 is 4071366521.

12566317040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 4618610 + ... + 4621329.

It is an arithmetic number, because the mean of its divisors is an integer number (773382978).

Almost surely, 2^12566317040 is an apocalyptic number.

12566317040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12566317040 is an abundant number, since it is smaller than the sum of its proper divisors (18369002080).

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

12566317040 is a wasteful number, since it uses less digits than its factorization.

12566317040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9239969 (or 9239963 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 12566317040 in words is "twelve billion, five hundred sixty-six million, three hundred seventeen thousand, forty".