1366063576477 has 2 divisors, whose sum is σ = 1366063576478. Its totient is φ = 1366063576476.

The previous prime is 1366063576459. The next prime is 1366063576543. The reversal of 1366063576477 is 7746753606631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1334091990841 + 31971585636 = 1155029^2 + 178806^2 .

It is a cyclic number.

It is not a de Polignac number, because 1366063576477 - 2¹¹ = 1366063574429 is a prime.

It is a super-2 number, since 2×1366063576477² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366063576447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683031788238 + 683031788239.

It is an arithmetic number, because the mean of its divisors is an integer number (683031788239).

Almost surely, 2^{1366063576477} is an apocalyptic number.

It is an amenable number.

1366063576477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366063576477 is an equidigital number, since it uses as much as digits as its factorization.

1366063576477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80015040, while the sum is 61.

The spelling of 1366063576477 in words is "one trillion, three hundred sixty-six billion, sixty-three million, five hundred seventy-six thousand, four hundred seventy-seven".