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66066000079 is a prime number
BaseRepresentation
bin111101100001110101…
…110010100011001111
320022112020211112111211
4331201311302203033
52040300344000304
650203355355251
74526114510062
oct754165624317
9208466745454
1066066000079
1126022597772
1210979452b27
1362cb3c3c51
1432aa3628d9
151aba076204
hexf61d728cf

66066000079 has 2 divisors, whose sum is σ = 66066000080. Its totient is φ = 66066000078.

The previous prime is 66066000047. The next prime is 66066000089. The reversal of 66066000079 is 97000066066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66066000079 - 25 = 66066000047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66066000089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33033000039 + 33033000040.

It is an arithmetic number, because the mean of its divisors is an integer number (33033000040).

Almost surely, 266066000079 is an apocalyptic number.

66066000079 is a deficient number, since it is larger than the sum of its proper divisors (1).

66066000079 is an equidigital number, since it uses as much as digits as its factorization.

66066000079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 66066000079 in words is "sixty-six billion, sixty-six million, seventy-nine", and thus it is an aban number and an uban number.