12606620544 has 128 divisors (see below), whose sum is σ = 42522412800. Its totient is φ = 3601884672.

The previous prime is 12606620531. The next prime is 12606620561. The reversal of 12606620544 is 44502660621.

12606620544 is a `hidden beast` number, since 1 + 2 + 606 + 6 + 2 + 0 + 5 + 44 = 666.

12606620544 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 (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12606620499 and 12606620508.

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 15 ways as a sum of consecutive naturals, for example, 236362 + ... + 284745.

It is an arithmetic number, because the mean of its divisors is an integer number (332206350).

Almost surely, 2^12606620544 is an apocalyptic number.

12606620544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12606620544 is an abundant number, since it is smaller than the sum of its proper divisors (29915792256).

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

12606620544 is an equidigital number, since it uses as much as digits as its factorization.

12606620544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521137 (or 521119 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 12606620544 in words is "twelve billion, six hundred six million, six hundred twenty thousand, five hundred forty-four".