8682521161 has 2 divisors, whose sum is σ = 8682521162. Its totient is φ = 8682521160.

The previous prime is 8682521123. The next prime is 8682521209. The reversal of 8682521161 is 1611252868.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4657380025 + 4025141136 = 68245^2 + 63444^2 .

It is a cyclic number.

It is not a de Polignac number, because 8682521161 - 2³¹ = 6535037513 is a prime.

It is a super-2 number, since 2×8682521161² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8682521101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4341260580 + 4341260581.

It is an arithmetic number, because the mean of its divisors is an integer number (4341260581).

Almost surely, 2^8682521161 is an apocalyptic number.

It is an amenable number.

8682521161 is a deficient number, since it is larger than the sum of its proper divisors (1).

8682521161 is an equidigital number, since it uses as much as digits as its factorization.

8682521161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 40.

The square root of 8682521161 is about 93180.0470111493. The cubic root of 8682521161 is about 2055.3318400978.

The spelling of 8682521161 in words is "eight billion, six hundred eighty-two million, five hundred twenty-one thousand, one hundred sixty-one".