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66080311259 is a prime number
BaseRepresentation
bin111101100010101100…
…011000011111011011
320022120020202121202112
4331202230120133123
52040313024430014
650205030222535
74526350243454
oct754254303733
9208506677675
1066080311259
112602a681996
12109821b4a4b
136301364bc1
1432ac20a12b
151abb45173e
hexf62b187db

66080311259 has 2 divisors, whose sum is σ = 66080311260. Its totient is φ = 66080311258.

The previous prime is 66080311237. The next prime is 66080311289. The reversal of 66080311259 is 95211308066.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-66080311259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (66080311229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33040155629 + 33040155630.

It is an arithmetic number, because the mean of its divisors is an integer number (33040155630).

Almost surely, 266080311259 is an apocalyptic number.

66080311259 is a deficient number, since it is larger than the sum of its proper divisors (1).

66080311259 is an equidigital number, since it uses as much as digits as its factorization.

66080311259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 66080311259 in words is "sixty-six billion, eighty million, three hundred eleven thousand, two hundred fifty-nine".