8163163157 has 2 divisors, whose sum is σ = 8163163158. Its totient is φ = 8163163156.

The previous prime is 8163163153. The next prime is 8163163163. The reversal of 8163163157 is 7513613618.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4224220036 + 3938943121 = 64994^2 + 62761^2 .

It is a cyclic number.

It is not a de Polignac number, because 8163163157 - 2² = 8163163153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8163163153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4081581578 + 4081581579.

It is an arithmetic number, because the mean of its divisors is an integer number (4081581579).

Almost surely, 2^8163163157 is an apocalyptic number.

It is an amenable number.

8163163157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8163163157 is an equidigital number, since it uses as much as digits as its factorization.

8163163157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 8163163157 is about 90350.2249969528. The cubic root of 8163163157 is about 2013.5055248660.

The spelling of 8163163157 in words is "eight billion, one hundred sixty-three million, one hundred sixty-three thousand, one hundred fifty-seven".