13365382155617 has 2 divisors, whose sum is σ = 13365382155618. Its totient is φ = 13365382155616.

The previous prime is 13365382155613. The next prime is 13365382155673. The reversal of 13365382155617 is 71655128356331.

It is an a-pointer prime, because the next prime (13365382155673) can be obtained adding 13365382155617 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12874827598801 + 490554556816 = 3588151^2 + 700396^2 .

It is a cyclic number.

It is not a de Polignac number, because 13365382155617 - 2² = 13365382155613 is a prime.

It is not a weakly prime, because it can be changed into another prime (13365382155613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6682691077808 + 6682691077809.

It is an arithmetic number, because the mean of its divisors is an integer number (6682691077809).

Almost surely, 2^{13365382155617} is an apocalyptic number.

It is an amenable number.

13365382155617 is a deficient number, since it is larger than the sum of its proper divisors (1).

13365382155617 is an equidigital number, since it uses as much as digits as its factorization.

13365382155617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608000, while the sum is 56.

The spelling of 13365382155617 in words is "thirteen trillion, three hundred sixty-five billion, three hundred eighty-two million, one hundred fifty-five thousand, six hundred seventeen".