[Izzy Dunne]

By having a wavelength 57 times longer than middle c.

Not quite.
Go down ONE octave, the wavelength is twice middle C.
Go down TWO octaves, the wavelength is four times middle C.
Go down THREE octaves, the wavelength is eight times middle C.
Go down 57 octaves, and the wavelength is 2^57 times middle C.

[eastsider]

Picky, picky, picky ...

All right, then, by having a wavelength 57 times longer than the B-flat below middle C. Okay? : )

[eastsider]

Congratulations, Izzy. You are today's winner of the Pythagorean Award. You're exactly right, thank you. The correct answer is, "By having a wavelength 2 to the 57th power longer than the B-flat below middle C."

Thanks again : )

[wideminded]

Go down 57 octaves, and the wavelength is 2^57 times middle C.

The frequency of the Bb below middle C is about 233 Hz. That is about 7.3 x 10 ^9 cycles per year. 2^57 is about 1.44 x 10^17. So each cycle of this "sound" last about 10 million years.

[4mycountry]

Did it say, "All your base are belong to us"?