13566466447 has 2 divisors, whose sum is σ = 13566466448. Its totient is φ = 13566466446.

The previous prime is 13566466439. The next prime is 13566466457. The reversal of 13566466447 is 74466466531.

It is a weak prime.

It is an emirp because it is prime and its reverse (74466466531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13566466447 - 2³ = 13566466439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13566466394 and 13566466403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13566466457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6783233223 + 6783233224.

It is an arithmetic number, because the mean of its divisors is an integer number (6783233224).

Almost surely, 2^13566466447 is an apocalyptic number.

13566466447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13566466447 is an equidigital number, since it uses as much as digits as its factorization.

13566466447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 52.

The spelling of 13566466447 in words is "thirteen billion, five hundred sixty-six million, four hundred sixty-six thousand, four hundred forty-seven".