13666302514223 has 2 divisors, whose sum is σ = 13666302514224. Its totient is φ = 13666302514222.

The previous prime is 13666302514103. The next prime is 13666302514237. The reversal of 13666302514223 is 32241520366631.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13666302514223 - 2¹⁴ = 13666302497839 is a prime.

It is a super-2 number, since 2×13666302514223² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13666302514253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6833151257111 + 6833151257112.

It is an arithmetic number, because the mean of its divisors is an integer number (6833151257112).

Almost surely, 2^{13666302514223} is an apocalyptic number.

13666302514223 is a deficient number, since it is larger than the sum of its proper divisors (1).

13666302514223 is an equidigital number, since it uses as much as digits as its factorization.

13666302514223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 13666302514223 in words is "thirteen trillion, six hundred sixty-six billion, three hundred two million, five hundred fourteen thousand, two hundred twenty-three".