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8066163481 is a prime number
BaseRepresentation
bin1111000001100011…
…11110001100011001
3202211010220120010121
413200301332030121
5113004414212411
63412221513241
7403613154415
oct74061761431
922733816117
108066163481
11346a159012
121691412821
139b716a5cc
145673abd45
15323219571
hex1e0c7e319

8066163481 has 2 divisors, whose sum is σ = 8066163482. Its totient is φ = 8066163480.

The previous prime is 8066163473. The next prime is 8066163491. The reversal of 8066163481 is 1843616608.

It is a happy number.

8066163481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7271825625 + 794337856 = 85275^2 + 28184^2 .

It is a cyclic number.

It is not a de Polignac number, because 8066163481 - 23 = 8066163473 is a prime.

It is a super-2 number, since 2×80661634812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8066163421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4033081740 + 4033081741.

It is an arithmetic number, because the mean of its divisors is an integer number (4033081741).

Almost surely, 28066163481 is an apocalyptic number.

It is an amenable number.

8066163481 is a deficient number, since it is larger than the sum of its proper divisors (1).

8066163481 is an equidigital number, since it uses as much as digits as its factorization.

8066163481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 8066163481 is about 89811.8226126160. The cubic root of 8066163481 is about 2005.4984928517.

The spelling of 8066163481 in words is "eight billion, sixty-six million, one hundred sixty-three thousand, four hundred eighty-one".