12566634325120 has 64 divisors (see below), whose sum is σ = 31348288923840. Its totient is φ = 4808103562240.

The previous prime is 12566634325111. The next prime is 12566634325123. The reversal of 12566634325120 is 2152343666521.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×12566634325120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (12566634325123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426841066 + ... + 426870505.

It is an arithmetic number, because the mean of its divisors is an integer number (489817014435).

Almost surely, 2^{12566634325120} is an apocalyptic number.

12566634325120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12566634325120 is an abundant number, since it is smaller than the sum of its proper divisors (18781654598720).

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

12566634325120 is an equidigital number, since it uses as much as digits as its factorization.

12566634325120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853711613 (or 853711601 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 12566634325120 in words is "twelve trillion, five hundred sixty-six billion, six hundred thirty-four million, three hundred twenty-five thousand, one hundred twenty".