13046566945 has 4 divisors (see below), whose sum is σ = 15655880340. Its totient is φ = 10437253552.

The previous prime is 13046566913. The next prime is 13046566979. The reversal of 13046566945 is 54966564031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2847182881 + 10199384064 = 53359^2 + 100992^2 .

It is a cyclic number.

It is not a de Polignac number, because 13046566945 - 2⁵ = 13046566913 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304656690 + ... + 1304656699.

It is an arithmetic number, because the mean of its divisors is an integer number (3913970085).

Almost surely, 2^13046566945 is an apocalyptic number.

It is an amenable number.

13046566945 is a deficient number, since it is larger than the sum of its proper divisors (2609313395).

13046566945 is an equidigital number, since it uses as much as digits as its factorization.

13046566945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609313394.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 13046566945 in words is "thirteen billion, forty-six million, five hundred sixty-six thousand, nine hundred forty-five".