5556671785369 has 2 divisors, whose sum is σ = 5556671785370. Its totient is φ = 5556671785368.

The previous prime is 5556671785367. The next prime is 5556671785381. The reversal of 5556671785369 is 9635871766555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5501252975625 + 55418809744 = 2345475^2 + 235412^2 .

It is a cyclic number.

It is not a de Polignac number, because 5556671785369 - 2¹ = 5556671785367 is a prime.

It is a super-2 number, since 2×5556671785369² (a number of 26 digits) contains 22 as substring.

Together with 5556671785367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5556671785367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778335892684 + 2778335892685.

It is an arithmetic number, because the mean of its divisors is an integer number (2778335892685).

Almost surely, 2^{5556671785369} is an apocalyptic number.

It is an amenable number.

5556671785369 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556671785369 is an equidigital number, since it uses as much as digits as its factorization.

5556671785369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840000, while the sum is 73.

The spelling of 5556671785369 in words is "five trillion, five hundred fifty-six billion, six hundred seventy-one million, seven hundred eighty-five thousand, three hundred sixty-nine".