12566073464 has 128 divisors (see below), whose sum is σ = 29118528000. Its totient is φ = 4961488896.

The previous prime is 12566073431. The next prime is 12566073497. The reversal of 12566073464 is 46437066521.

It is an interprime number because it is at equal distance from previous prime (12566073431) and next prime (12566073497).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22972439 + ... + 22972985.

It is an arithmetic number, because the mean of its divisors is an integer number (227488500).

Almost surely, 2^12566073464 is an apocalyptic number.

12566073464 is a gapful number since it is divisible by the number (14) 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 12566073464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14559264000).

12566073464 is an abundant number, since it is smaller than the sum of its proper divisors (16552454536).

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

12566073464 is a wasteful number, since it uses less digits than its factorization.

12566073464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 12566073464 in words is "twelve billion, five hundred sixty-six million, seventy-three thousand, four hundred sixty-four".