13166345663 has 2 divisors, whose sum is σ = 13166345664. Its totient is φ = 13166345662.

The previous prime is 13166345641. The next prime is 13166345711. The reversal of 13166345663 is 36654366131.

It is a weak prime.

It is an emirp because it is prime and its reverse (36654366131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13166345663 - 2¹⁴ = 13166329279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13166345603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583172831 + 6583172832.

It is an arithmetic number, because the mean of its divisors is an integer number (6583172832).

Almost surely, 2^13166345663 is an apocalyptic number.

13166345663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166345663 is an equidigital number, since it uses as much as digits as its factorization.

13166345663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 44.

The spelling of 13166345663 in words is "thirteen billion, one hundred sixty-six million, three hundred forty-five thousand, six hundred sixty-three".