807580556161 has 2 divisors, whose sum is σ = 807580556162. Its totient is φ = 807580556160.

The previous prime is 807580555973. The next prime is 807580556213. The reversal of 807580556161 is 161655085708.

It is a happy number.

It is an a-pointer prime, because the next prime (807580556213) can be obtained adding 807580556161 to its sum of digits (52).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 749663320561 + 57917235600 = 865831^2 + 240660^2 .

It is a cyclic number.

It is not a de Polignac number, because 807580556161 - 2¹⁷ = 807580425089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 807580556099 and 807580556108.

It is not a weakly prime, because it can be changed into another prime (807580566161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403790278080 + 403790278081.

It is an arithmetic number, because the mean of its divisors is an integer number (403790278081).

Almost surely, 2^807580556161 is an apocalyptic number.

It is an amenable number.

807580556161 is a deficient number, since it is larger than the sum of its proper divisors (1).

807580556161 is an equidigital number, since it uses as much as digits as its factorization.

807580556161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016000, while the sum is 52.

The spelling of 807580556161 in words is "eight hundred seven billion, five hundred eighty million, five hundred fifty-six thousand, one hundred sixty-one".