8160644131 has 2 divisors, whose sum is σ = 8160644132. Its totient is φ = 8160644130.

The previous prime is 8160644071. The next prime is 8160644137. The reversal of 8160644131 is 1314460618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8160644131 - 2¹⁹ = 8160119843 is a prime.

It is a super-2 number, since 2×8160644131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8160644137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4080322065 + 4080322066.

It is an arithmetic number, because the mean of its divisors is an integer number (4080322066).

Almost surely, 2^8160644131 is an apocalyptic number.

8160644131 is a deficient number, since it is larger than the sum of its proper divisors (1).

8160644131 is an equidigital number, since it uses as much as digits as its factorization.

8160644131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 8160644131 is about 90336.2835797444. The cubic root of 8160644131 is about 2013.2983913287.

The spelling of 8160644131 in words is "eight billion, one hundred sixty million, six hundred forty-four thousand, one hundred thirty-one".