83565318163 has 2 divisors, whose sum is σ = 83565318164. Its totient is φ = 83565318162.

The previous prime is 83565318073. The next prime is 83565318241. The reversal of 83565318163 is 36181356538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83565318163 - 2¹⁷ = 83565187091 is a prime.

It is not a weakly prime, because it can be changed into another prime (83565318563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41782659081 + 41782659082.

It is an arithmetic number, because the mean of its divisors is an integer number (41782659082).

Almost surely, 2^83565318163 is an apocalyptic number.

83565318163 is a deficient number, since it is larger than the sum of its proper divisors (1).

83565318163 is an equidigital number, since it uses as much as digits as its factorization.

83565318163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 49.

The spelling of 83565318163 in words is "eighty-three billion, five hundred sixty-five million, three hundred eighteen thousand, one hundred sixty-three".