8180664241 has 2 divisors, whose sum is σ = 8180664242. Its totient is φ = 8180664240.

The previous prime is 8180664211. The next prime is 8180664253. The reversal of 8180664241 is 1424660818.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6622704400 + 1557959841 = 81380^2 + 39471^2 .

It is a cyclic number.

It is not a de Polignac number, because 8180664241 - 2¹³ = 8180656049 is a prime.

It is a super-2 number, since 2×8180664241² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8180664194 and 8180664203.

It is not a weakly prime, because it can be changed into another prime (8180664211) 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, 4090332120 + 4090332121.

It is an arithmetic number, because the mean of its divisors is an integer number (4090332121).

Almost surely, 2^8180664241 is an apocalyptic number.

It is an amenable number.

8180664241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8180664241 is an equidigital number, since it uses as much as digits as its factorization.

8180664241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 8180664241 is about 90447.0245005329. The cubic root of 8180664241 is about 2014.9434224006.

The spelling of 8180664241 in words is "eight billion, one hundred eighty million, six hundred sixty-four thousand, two hundred forty-one".