12546565745 has 8 divisors (see below), whose sum is σ = 17206718784. Its totient is φ = 8603359344.

The previous prime is 12546565657. The next prime is 12546565751. The reversal of 12546565745 is 54756564521.

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 12546565745 - 2¹² = 12546561649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12546565693 and 12546565702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179236619 + ... + 179236688.

It is an arithmetic number, because the mean of its divisors is an integer number (2150839848).

Almost surely, 2^12546565745 is an apocalyptic number.

It is an amenable number.

12546565745 is a deficient number, since it is larger than the sum of its proper divisors (4660153039).

12546565745 is an equidigital number, since it uses as much as digits as its factorization.

12546565745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358473319.

The product of its digits is 5040000, while the sum is 50.

The spelling of 12546565745 in words is "twelve billion, five hundred forty-six million, five hundred sixty-five thousand, seven hundred forty-five".