13436628166477 has 2 divisors, whose sum is σ = 13436628166478. Its totient is φ = 13436628166476.

The previous prime is 13436628166471. The next prime is 13436628166613. The reversal of 13436628166477 is 77466182663431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12960784811881 + 475843354596 = 3600109^2 + 689814^2 .

It is an emirp because it is prime and its reverse (77466182663431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13436628166477 - 2²³ = 13436619777869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13436628166471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718314083238 + 6718314083239.

It is an arithmetic number, because the mean of its divisors is an integer number (6718314083239).

Almost surely, 2^{13436628166477} is an apocalyptic number.

It is an amenable number.

13436628166477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13436628166477 is an equidigital number, since it uses as much as digits as its factorization.

13436628166477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 146313216, while the sum is 64.

The spelling of 13436628166477 in words is "thirteen trillion, four hundred thirty-six billion, six hundred twenty-eight million, one hundred sixty-six thousand, four hundred seventy-seven".