12355016645 has 8 divisors (see below), whose sum is σ = 15698138904. Its totient is φ = 9302600704.

The previous prime is 12355016633. The next prime is 12355016659. The reversal of 12355016645 is 54661055321.

12355016645 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 4 ways, for example, as 3046819204 + 9308197441 = 55198^2 + 96479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12355016645 - 2⁸ = 12355016389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12355016599 and 12355016608.

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, 72676484 + ... + 72676653.

It is an arithmetic number, because the mean of its divisors is an integer number (1962267363).

Almost surely, 2^12355016645 is an apocalyptic number.

It is an amenable number.

12355016645 is a deficient number, since it is larger than the sum of its proper divisors (3343122259).

12355016645 is a wasteful number, since it uses less digits than its factorization.

12355016645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145353159.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 12355016645 in words is "twelve billion, three hundred fifty-five million, sixteen thousand, six hundred forty-five".