8199653081 has 2 divisors, whose sum is σ = 8199653082. Its totient is φ = 8199653080.

The previous prime is 8199653023. The next prime is 8199653117. The reversal of 8199653081 is 1803569918.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8115307225 + 84345856 = 90085^2 + 9184^2 .

It is a cyclic number.

It is not a de Polignac number, because 8199653081 - 2¹⁰ = 8199652057 is a prime.

It is a super-2 number, since 2×8199653081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8199653381) 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, 4099826540 + 4099826541.

It is an arithmetic number, because the mean of its divisors is an integer number (4099826541).

Almost surely, 2^8199653081 is an apocalyptic number.

It is an amenable number.

8199653081 is a deficient number, since it is larger than the sum of its proper divisors (1).

8199653081 is an equidigital number, since it uses as much as digits as its factorization.

8199653081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 8199653081 is about 90551.9358213837. The cubic root of 8199653081 is about 2016.5012369122.

The spelling of 8199653081 in words is "eight billion, one hundred ninety-nine million, six hundred fifty-three thousand, eighty-one".