1345061066617 has 2 divisors, whose sum is σ = 1345061066618. Its totient is φ = 1345061066616.

The previous prime is 1345061066561. The next prime is 1345061066641. The reversal of 1345061066617 is 7166601605431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 744589506816 + 600471559801 = 862896^2 + 774901^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345061066617 - 2³⁵ = 1310701328249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1345061066317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672530533308 + 672530533309.

It is an arithmetic number, because the mean of its divisors is an integer number (672530533309).

Almost surely, 2^{1345061066617} is an apocalyptic number.

It is an amenable number.

1345061066617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345061066617 is an equidigital number, since it uses as much as digits as its factorization.

1345061066617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 1345061066617 in words is "one trillion, three hundred forty-five billion, sixty-one million, sixty-six thousand, six hundred seventeen".